diff --git a/api-index-v1.json b/api-index-v1.json
index 53d67f7196164..937c3fdd3ff6d 100644
--- a/api-index-v1.json
+++ b/api-index-v1.json
@@ -58949,37 +58949,37 @@
       "options": {
         "csharp_namespace": {
           "valueCounts": {
-            "Google.Cloud.Retail.V2Alpha": 17
+            "Google.Cloud.Retail.V2Alpha": 18
           }
         },
         "go_package": {
           "valueCounts": {
-            "google.golang.org/genproto/googleapis/cloud/retail/v2alpha;retail": 17
+            "google.golang.org/genproto/googleapis/cloud/retail/v2alpha;retail": 18
           }
         },
         "java_multiple_files": {
           "valueCounts": {
-            "true": 17
+            "true": 18
           }
         },
         "java_package": {
           "valueCounts": {
-            "com.google.cloud.retail.v2alpha": 17
+            "com.google.cloud.retail.v2alpha": 18
           }
         },
         "objc_class_prefix": {
           "valueCounts": {
-            "RETAIL": 17
+            "RETAIL": 18
           }
         },
         "php_namespace": {
           "valueCounts": {
-            "Google\\Cloud\\Retail\\V2alpha": 17
+            "Google\\Cloud\\Retail\\V2alpha": 18
           }
         },
         "ruby_package": {
           "valueCounts": {
-            "Google::Cloud::Retail::V2alpha": 17
+            "Google::Cloud::Retail::V2alpha": 18
           }
         }
       },
@@ -58988,6 +58988,39 @@
           "shortName": "CatalogService",
           "fullName": "google.cloud.retail.v2alpha.CatalogService",
           "methods": [
+            {
+              "shortName": "AddCatalogAttribute",
+              "fullName": "google.cloud.retail.v2alpha.CatalogService.AddCatalogAttribute",
+              "mode": "UNARY",
+              "bindings": [
+                {
+                  "httpMethod": "POST",
+                  "path": "/v2alpha/{attributes_config=projects/*/locations/*/catalogs/*/attributesConfig}:addCatalogAttribute"
+                }
+              ]
+            },
+            {
+              "shortName": "GetAttributesConfig",
+              "fullName": "google.cloud.retail.v2alpha.CatalogService.GetAttributesConfig",
+              "mode": "UNARY",
+              "bindings": [
+                {
+                  "httpMethod": "GET",
+                  "path": "/v2alpha/{name=projects/*/locations/*/catalogs/*/attributesConfig}"
+                }
+              ]
+            },
+            {
+              "shortName": "GetCompletionConfig",
+              "fullName": "google.cloud.retail.v2alpha.CatalogService.GetCompletionConfig",
+              "mode": "UNARY",
+              "bindings": [
+                {
+                  "httpMethod": "GET",
+                  "path": "/v2alpha/{name=projects/*/locations/*/catalogs/*/completionConfig}"
+                }
+              ]
+            },
             {
               "shortName": "GetDefaultBranch",
               "fullName": "google.cloud.retail.v2alpha.CatalogService.GetDefaultBranch",
@@ -59010,6 +59043,28 @@
                 }
               ]
             },
+            {
+              "shortName": "RemoveCatalogAttribute",
+              "fullName": "google.cloud.retail.v2alpha.CatalogService.RemoveCatalogAttribute",
+              "mode": "UNARY",
+              "bindings": [
+                {
+                  "httpMethod": "POST",
+                  "path": "/v2alpha/{attributes_config=projects/*/locations/*/catalogs/*/attributesConfig}:removeCatalogAttribute"
+                }
+              ]
+            },
+            {
+              "shortName": "ReplaceCatalogAttribute",
+              "fullName": "google.cloud.retail.v2alpha.CatalogService.ReplaceCatalogAttribute",
+              "mode": "UNARY",
+              "bindings": [
+                {
+                  "httpMethod": "POST",
+                  "path": "/v2alpha/{attributes_config=projects/*/locations/*/catalogs/*/attributesConfig}:replaceCatalogAttribute"
+                }
+              ]
+            },
             {
               "shortName": "SetDefaultBranch",
               "fullName": "google.cloud.retail.v2alpha.CatalogService.SetDefaultBranch",
@@ -59021,6 +59076,17 @@
                 }
               ]
             },
+            {
+              "shortName": "UpdateAttributesConfig",
+              "fullName": "google.cloud.retail.v2alpha.CatalogService.UpdateAttributesConfig",
+              "mode": "UNARY",
+              "bindings": [
+                {
+                  "httpMethod": "PATCH",
+                  "path": "/v2alpha/{attributes_config.name=projects/*/locations/*/catalogs/*/attributesConfig}"
+                }
+              ]
+            },
             {
               "shortName": "UpdateCatalog",
               "fullName": "google.cloud.retail.v2alpha.CatalogService.UpdateCatalog",
@@ -59031,6 +59097,17 @@
                   "path": "/v2alpha/{catalog.name=projects/*/locations/*/catalogs/*}"
                 }
               ]
+            },
+            {
+              "shortName": "UpdateCompletionConfig",
+              "fullName": "google.cloud.retail.v2alpha.CatalogService.UpdateCompletionConfig",
+              "mode": "UNARY",
+              "bindings": [
+                {
+                  "httpMethod": "PATCH",
+                  "path": "/v2alpha/{completion_config.name=projects/*/locations/*/catalogs/*/completionConfig}"
+                }
+              ]
             }
           ]
         },
@@ -59221,6 +59298,17 @@
                 }
               ]
             },
+            {
+              "shortName": "PurgeProducts",
+              "fullName": "google.cloud.retail.v2alpha.ProductService.PurgeProducts",
+              "mode": "UNARY",
+              "bindings": [
+                {
+                  "httpMethod": "POST",
+                  "path": "/v2alpha/{parent=projects/*/locations/*/catalogs/*/branches/*}/products:purge"
+                }
+              ]
+            },
             {
               "shortName": "RemoveFulfillmentPlaces",
               "fullName": "google.cloud.retail.v2alpha.ProductService.RemoveFulfillmentPlaces",