diff --git a/src/sinks/util/adaptive_concurrency/controller.rs b/src/sinks/util/adaptive_concurrency/controller.rs
index 83250994bf7525..19615f7ba27424 100644
--- a/src/sinks/util/adaptive_concurrency/controller.rs
+++ b/src/sinks/util/adaptive_concurrency/controller.rs
@@ -69,7 +69,7 @@ impl<L> Controller<L> {
         // current limit and the maximum, effectively bypassing all the
         // mechanisms. Otherwise, the current limit is set to 1 and the
         // maximum to MAX_CONCURRENCY.
-        let current_limit = concurrency.unwrap_or(1);
+        let current_limit = concurrency.unwrap_or(settings.initial_concurrency);
         Self {
             semaphore: Arc::new(ShrinkableSemaphore::new(current_limit)),
             concurrency,
diff --git a/src/sinks/util/adaptive_concurrency/mod.rs b/src/sinks/util/adaptive_concurrency/mod.rs
index a9795f70f2957b..228d93d4e28b86 100644
--- a/src/sinks/util/adaptive_concurrency/mod.rs
+++ b/src/sinks/util/adaptive_concurrency/mod.rs
@@ -9,6 +9,8 @@ mod service;
 #[cfg(test)]
 pub mod tests;
 
+// Make sure to update the max range of the `AdaptiveConcurrencySettings::initial_concurrency` when changing
+// this constant.
 pub(super) const MAX_CONCURRENCY: usize = 200;
 
 pub(crate) use layer::AdaptiveConcurrencyLimitLayer;
@@ -29,6 +31,15 @@ pub(self) fn instant_now() -> std::time::Instant {
 #[derive(Clone, Copy, Debug)]
 #[serde(deny_unknown_fields)]
 pub struct AdaptiveConcurrencySettings {
+    /// The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+    ///
+    /// It is recommended to set this value to your service's average limit if you're seeing that it takes a
+    /// long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+    /// `adaptive_concurrency_limit` metric.
+    #[configurable(validation(range(min = 1, max = 200)))]
+    #[serde(default = "default_initial_concurrency")]
+    pub(super) initial_concurrency: usize,
+
     /// The fraction of the current value to set the new concurrency limit when decreasing the limit.
     ///
     /// Valid values are greater than `0` and less than `1`. Smaller values cause the algorithm to scale back rapidly
@@ -63,6 +74,10 @@ pub struct AdaptiveConcurrencySettings {
     pub(super) rtt_deviation_scale: f64,
 }
 
+const fn default_initial_concurrency() -> usize {
+    1
+}
+
 const fn default_decrease_ratio() -> f64 {
     0.9
 }
@@ -84,6 +99,7 @@ impl AdaptiveConcurrencySettings {
 impl Default for AdaptiveConcurrencySettings {
     fn default() -> Self {
         Self {
+            initial_concurrency: default_initial_concurrency(),
             decrease_ratio: default_decrease_ratio(),
             ewma_alpha: default_ewma_alpha(),
             rtt_deviation_scale: default_rtt_deviation_scale(),
diff --git a/website/cue/reference/components/sinks/base/appsignal.cue b/website/cue/reference/components/sinks/base/appsignal.cue
index 79b5a26ff04cd5..f3d81555a59d55 100644
--- a/website/cue/reference/components/sinks/base/appsignal.cue
+++ b/website/cue/reference/components/sinks/base/appsignal.cue
@@ -170,6 +170,17 @@ base: components: sinks: appsignal: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/aws_cloudwatch_logs.cue b/website/cue/reference/components/sinks/base/aws_cloudwatch_logs.cue
index 4cbe09f99f3b0c..c0549fec493411 100644
--- a/website/cue/reference/components/sinks/base/aws_cloudwatch_logs.cue
+++ b/website/cue/reference/components/sinks/base/aws_cloudwatch_logs.cue
@@ -417,6 +417,17 @@ base: components: sinks: aws_cloudwatch_logs: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/aws_cloudwatch_metrics.cue b/website/cue/reference/components/sinks/base/aws_cloudwatch_metrics.cue
index 1f54161e128390..c39bc5392be010 100644
--- a/website/cue/reference/components/sinks/base/aws_cloudwatch_metrics.cue
+++ b/website/cue/reference/components/sinks/base/aws_cloudwatch_metrics.cue
@@ -258,6 +258,17 @@ base: components: sinks: aws_cloudwatch_metrics: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/aws_kinesis_firehose.cue b/website/cue/reference/components/sinks/base/aws_kinesis_firehose.cue
index a43ed568756625..d5774f897043b9 100644
--- a/website/cue/reference/components/sinks/base/aws_kinesis_firehose.cue
+++ b/website/cue/reference/components/sinks/base/aws_kinesis_firehose.cue
@@ -388,6 +388,17 @@ base: components: sinks: aws_kinesis_firehose: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/aws_kinesis_streams.cue b/website/cue/reference/components/sinks/base/aws_kinesis_streams.cue
index 92ed82abd78490..77edb8cb46aa8c 100644
--- a/website/cue/reference/components/sinks/base/aws_kinesis_streams.cue
+++ b/website/cue/reference/components/sinks/base/aws_kinesis_streams.cue
@@ -397,6 +397,17 @@ base: components: sinks: aws_kinesis_streams: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/aws_s3.cue b/website/cue/reference/components/sinks/base/aws_s3.cue
index 2f31fdbd5b3a64..1facd8fd4d40c3 100644
--- a/website/cue/reference/components/sinks/base/aws_s3.cue
+++ b/website/cue/reference/components/sinks/base/aws_s3.cue
@@ -634,6 +634,17 @@ base: components: sinks: aws_s3: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/aws_sqs.cue b/website/cue/reference/components/sinks/base/aws_sqs.cue
index 07bdf7373a655c..ac6787c61fc410 100644
--- a/website/cue/reference/components/sinks/base/aws_sqs.cue
+++ b/website/cue/reference/components/sinks/base/aws_sqs.cue
@@ -350,6 +350,17 @@ base: components: sinks: aws_sqs: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/axiom.cue b/website/cue/reference/components/sinks/base/axiom.cue
index bb619bc8860981..82a857624b19f3 100644
--- a/website/cue/reference/components/sinks/base/axiom.cue
+++ b/website/cue/reference/components/sinks/base/axiom.cue
@@ -108,6 +108,17 @@ base: components: sinks: axiom: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/azure_blob.cue b/website/cue/reference/components/sinks/base/azure_blob.cue
index 5c2568145a5972..46a1a6fbe5cf29 100644
--- a/website/cue/reference/components/sinks/base/azure_blob.cue
+++ b/website/cue/reference/components/sinks/base/azure_blob.cue
@@ -382,6 +382,17 @@ base: components: sinks: azure_blob: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/azure_monitor_logs.cue b/website/cue/reference/components/sinks/base/azure_monitor_logs.cue
index 76de4da2dc5ac9..aafbe16e318abb 100644
--- a/website/cue/reference/components/sinks/base/azure_monitor_logs.cue
+++ b/website/cue/reference/components/sinks/base/azure_monitor_logs.cue
@@ -166,6 +166,17 @@ base: components: sinks: azure_monitor_logs: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/clickhouse.cue b/website/cue/reference/components/sinks/base/clickhouse.cue
index 6bccc5dfe1968a..458cf35a21e810 100644
--- a/website/cue/reference/components/sinks/base/clickhouse.cue
+++ b/website/cue/reference/components/sinks/base/clickhouse.cue
@@ -219,6 +219,17 @@ base: components: sinks: clickhouse: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/databend.cue b/website/cue/reference/components/sinks/base/databend.cue
index 069eb227207f7e..2da07c23af456c 100644
--- a/website/cue/reference/components/sinks/base/databend.cue
+++ b/website/cue/reference/components/sinks/base/databend.cue
@@ -258,6 +258,17 @@ base: components: sinks: databend: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/datadog_events.cue b/website/cue/reference/components/sinks/base/datadog_events.cue
index 445c879d9d2102..27eeab0f244104 100644
--- a/website/cue/reference/components/sinks/base/datadog_events.cue
+++ b/website/cue/reference/components/sinks/base/datadog_events.cue
@@ -103,6 +103,17 @@ base: components: sinks: datadog_events: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/datadog_logs.cue b/website/cue/reference/components/sinks/base/datadog_logs.cue
index 852c972024102c..71aa7a783d3444 100644
--- a/website/cue/reference/components/sinks/base/datadog_logs.cue
+++ b/website/cue/reference/components/sinks/base/datadog_logs.cue
@@ -184,6 +184,17 @@ base: components: sinks: datadog_logs: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/datadog_metrics.cue b/website/cue/reference/components/sinks/base/datadog_metrics.cue
index 2d95089686fa38..e79fc5d01943d2 100644
--- a/website/cue/reference/components/sinks/base/datadog_metrics.cue
+++ b/website/cue/reference/components/sinks/base/datadog_metrics.cue
@@ -145,6 +145,17 @@ base: components: sinks: datadog_metrics: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/datadog_traces.cue b/website/cue/reference/components/sinks/base/datadog_traces.cue
index 91ea597ae84be7..8f8fd899d41215 100644
--- a/website/cue/reference/components/sinks/base/datadog_traces.cue
+++ b/website/cue/reference/components/sinks/base/datadog_traces.cue
@@ -154,6 +154,17 @@ base: components: sinks: datadog_traces: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/elasticsearch.cue b/website/cue/reference/components/sinks/base/elasticsearch.cue
index 31ec23da07b008..56432ddfb10ad3 100644
--- a/website/cue/reference/components/sinks/base/elasticsearch.cue
+++ b/website/cue/reference/components/sinks/base/elasticsearch.cue
@@ -571,6 +571,17 @@ base: components: sinks: elasticsearch: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/gcp_chronicle_unstructured.cue b/website/cue/reference/components/sinks/base/gcp_chronicle_unstructured.cue
index 82d963fc5da3ae..382162e99084cc 100644
--- a/website/cue/reference/components/sinks/base/gcp_chronicle_unstructured.cue
+++ b/website/cue/reference/components/sinks/base/gcp_chronicle_unstructured.cue
@@ -306,6 +306,17 @@ base: components: sinks: gcp_chronicle_unstructured: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/gcp_cloud_storage.cue b/website/cue/reference/components/sinks/base/gcp_cloud_storage.cue
index 89b2f37613e0ed..636acde2cdbeab 100644
--- a/website/cue/reference/components/sinks/base/gcp_cloud_storage.cue
+++ b/website/cue/reference/components/sinks/base/gcp_cloud_storage.cue
@@ -465,6 +465,17 @@ base: components: sinks: gcp_cloud_storage: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/gcp_pubsub.cue b/website/cue/reference/components/sinks/base/gcp_pubsub.cue
index 9c45e6195401c4..e63e3e1afd92e0 100644
--- a/website/cue/reference/components/sinks/base/gcp_pubsub.cue
+++ b/website/cue/reference/components/sinks/base/gcp_pubsub.cue
@@ -297,6 +297,17 @@ base: components: sinks: gcp_pubsub: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/gcp_stackdriver_logs.cue b/website/cue/reference/components/sinks/base/gcp_stackdriver_logs.cue
index 646e9d3ec69a26..3da5fba5f8e656 100644
--- a/website/cue/reference/components/sinks/base/gcp_stackdriver_logs.cue
+++ b/website/cue/reference/components/sinks/base/gcp_stackdriver_logs.cue
@@ -212,6 +212,17 @@ base: components: sinks: gcp_stackdriver_logs: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/gcp_stackdriver_metrics.cue b/website/cue/reference/components/sinks/base/gcp_stackdriver_metrics.cue
index 6f58d57ca46a99..49531983a3e51a 100644
--- a/website/cue/reference/components/sinks/base/gcp_stackdriver_metrics.cue
+++ b/website/cue/reference/components/sinks/base/gcp_stackdriver_metrics.cue
@@ -154,6 +154,17 @@ base: components: sinks: gcp_stackdriver_metrics: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/greptimedb.cue b/website/cue/reference/components/sinks/base/greptimedb.cue
index 6f25208e64bad4..2334ba9cde8f89 100644
--- a/website/cue/reference/components/sinks/base/greptimedb.cue
+++ b/website/cue/reference/components/sinks/base/greptimedb.cue
@@ -142,6 +142,17 @@ base: components: sinks: greptimedb: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/honeycomb.cue b/website/cue/reference/components/sinks/base/honeycomb.cue
index dbd1e0ab1f2a7f..7fdcc3e59527a7 100644
--- a/website/cue/reference/components/sinks/base/honeycomb.cue
+++ b/website/cue/reference/components/sinks/base/honeycomb.cue
@@ -135,6 +135,17 @@ base: components: sinks: honeycomb: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/http.cue b/website/cue/reference/components/sinks/base/http.cue
index c737b39f58f729..36381b0119f582 100644
--- a/website/cue/reference/components/sinks/base/http.cue
+++ b/website/cue/reference/components/sinks/base/http.cue
@@ -403,6 +403,17 @@ base: components: sinks: http: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/humio_logs.cue b/website/cue/reference/components/sinks/base/humio_logs.cue
index 8d8253417eb4bd..6ad5779de9eb46 100644
--- a/website/cue/reference/components/sinks/base/humio_logs.cue
+++ b/website/cue/reference/components/sinks/base/humio_logs.cue
@@ -341,6 +341,17 @@ base: components: sinks: humio_logs: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/humio_metrics.cue b/website/cue/reference/components/sinks/base/humio_metrics.cue
index b919e8c7b8f2ee..9f7dc55bdd4591 100644
--- a/website/cue/reference/components/sinks/base/humio_metrics.cue
+++ b/website/cue/reference/components/sinks/base/humio_metrics.cue
@@ -237,6 +237,17 @@ base: components: sinks: humio_metrics: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/influxdb_logs.cue b/website/cue/reference/components/sinks/base/influxdb_logs.cue
index 21fc5d8ee2508e..1d367fbd27f317 100644
--- a/website/cue/reference/components/sinks/base/influxdb_logs.cue
+++ b/website/cue/reference/components/sinks/base/influxdb_logs.cue
@@ -215,6 +215,17 @@ base: components: sinks: influxdb_logs: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/influxdb_metrics.cue b/website/cue/reference/components/sinks/base/influxdb_metrics.cue
index 42e444f63c55fe..b221c7e3db25e4 100644
--- a/website/cue/reference/components/sinks/base/influxdb_metrics.cue
+++ b/website/cue/reference/components/sinks/base/influxdb_metrics.cue
@@ -173,6 +173,17 @@ base: components: sinks: influxdb_metrics: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/logdna.cue b/website/cue/reference/components/sinks/base/logdna.cue
index 18b5ed6655acdf..e2a03080cca131 100644
--- a/website/cue/reference/components/sinks/base/logdna.cue
+++ b/website/cue/reference/components/sinks/base/logdna.cue
@@ -178,6 +178,17 @@ base: components: sinks: logdna: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/loki.cue b/website/cue/reference/components/sinks/base/loki.cue
index 0071c5b2ac985b..dd02a5c16d7924 100644
--- a/website/cue/reference/components/sinks/base/loki.cue
+++ b/website/cue/reference/components/sinks/base/loki.cue
@@ -407,6 +407,17 @@ base: components: sinks: loki: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/mezmo.cue b/website/cue/reference/components/sinks/base/mezmo.cue
index 31907546e45e21..4ac6e3d290656c 100644
--- a/website/cue/reference/components/sinks/base/mezmo.cue
+++ b/website/cue/reference/components/sinks/base/mezmo.cue
@@ -178,6 +178,17 @@ base: components: sinks: mezmo: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/new_relic.cue b/website/cue/reference/components/sinks/base/new_relic.cue
index 9fcf952c07d8c5..4d6cbc8d4ff6df 100644
--- a/website/cue/reference/components/sinks/base/new_relic.cue
+++ b/website/cue/reference/components/sinks/base/new_relic.cue
@@ -184,6 +184,17 @@ base: components: sinks: new_relic: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/prometheus_remote_write.cue b/website/cue/reference/components/sinks/base/prometheus_remote_write.cue
index 1141e9e39dce47..78ff004317f561 100644
--- a/website/cue/reference/components/sinks/base/prometheus_remote_write.cue
+++ b/website/cue/reference/components/sinks/base/prometheus_remote_write.cue
@@ -322,6 +322,17 @@ base: components: sinks: prometheus_remote_write: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/redis.cue b/website/cue/reference/components/sinks/base/redis.cue
index 774370ce58a00d..f432ea7ff7fc3d 100644
--- a/website/cue/reference/components/sinks/base/redis.cue
+++ b/website/cue/reference/components/sinks/base/redis.cue
@@ -301,6 +301,17 @@ base: components: sinks: redis: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/sematext_logs.cue b/website/cue/reference/components/sinks/base/sematext_logs.cue
index 7d0290d6302975..bc1f06127e6966 100644
--- a/website/cue/reference/components/sinks/base/sematext_logs.cue
+++ b/website/cue/reference/components/sinks/base/sematext_logs.cue
@@ -145,6 +145,17 @@ base: components: sinks: sematext_logs: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/sematext_metrics.cue b/website/cue/reference/components/sinks/base/sematext_metrics.cue
index 7befa370214dea..1322b8bd26072f 100644
--- a/website/cue/reference/components/sinks/base/sematext_metrics.cue
+++ b/website/cue/reference/components/sinks/base/sematext_metrics.cue
@@ -131,6 +131,17 @@ base: components: sinks: sematext_metrics: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/splunk_hec_logs.cue b/website/cue/reference/components/sinks/base/splunk_hec_logs.cue
index 184db138643ccd..ab946626c47abe 100644
--- a/website/cue/reference/components/sinks/base/splunk_hec_logs.cue
+++ b/website/cue/reference/components/sinks/base/splunk_hec_logs.cue
@@ -393,6 +393,17 @@ base: components: sinks: splunk_hec_logs: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/splunk_hec_metrics.cue b/website/cue/reference/components/sinks/base/splunk_hec_metrics.cue
index ce147a10556248..f7f203a0f6944c 100644
--- a/website/cue/reference/components/sinks/base/splunk_hec_metrics.cue
+++ b/website/cue/reference/components/sinks/base/splunk_hec_metrics.cue
@@ -211,6 +211,17 @@ base: components: sinks: splunk_hec_metrics: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.
diff --git a/website/cue/reference/components/sinks/base/vector.cue b/website/cue/reference/components/sinks/base/vector.cue
index b9b65a08b157e2..9798d965b59d6f 100644
--- a/website/cue/reference/components/sinks/base/vector.cue
+++ b/website/cue/reference/components/sinks/base/vector.cue
@@ -123,6 +123,17 @@ base: components: sinks: vector: configuration: {
 						required: false
 						type: float: default: 0.4
 					}
+					initial_concurrency: {
+						description: """
+																The initial concurrency limit to use. If not specified, the initial limit will be 1 (no concurrency).
+
+																It is recommended to set this value to your service's average limit if you're seeing that it takes a
+																long time to ramp up adaptive concurrency after a restart. You can find this value by looking at the
+																`adaptive_concurrency_limit` metric.
+																"""
+						required: false
+						type: uint: default: 1
+					}
 					rtt_deviation_scale: {
 						description: """
 																Scale of RTT deviations which are not considered anomalous.