diff --git a/package-lock.json b/package-lock.json
index 831a1a71..ed11d595 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,7 +8,7 @@
       "devDependencies": {
         "@seamapi/fake-seam-connect": "1.72.1",
         "@seamapi/nextlove-sdk-generator": "1.14.6",
-        "@seamapi/types": "1.262.1",
+        "@seamapi/types": "1.263.0",
         "del": "^7.1.0",
         "prettier": "^3.2.5"
       }
@@ -473,9 +473,9 @@
       }
     },
     "node_modules/@seamapi/types": {
-      "version": "1.262.1",
-      "resolved": "https://registry.npmjs.org/@seamapi/types/-/types-1.262.1.tgz",
-      "integrity": "sha512-AlwwSnSFQNeTB1rGYqtztJII9vieEbcmaLuFtK1PokFQSan+u/B5esuh1ZPPfRSGP7QWNThpBdvuP0z6vAii4Q==",
+      "version": "1.263.0",
+      "resolved": "https://registry.npmjs.org/@seamapi/types/-/types-1.263.0.tgz",
+      "integrity": "sha512-3FWlNcRVQSI+WlaD39s1eo31C2bxKO/3p5ZH+OD/4heFP2cvcUh5Bv6KMb57iocNxMHL83KJvIJLdXjDp3+JKA==",
       "dev": true,
       "engines": {
         "node": ">=18.12.0",
diff --git a/package.json b/package.json
index 240d1fec..d445f8c0 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
   "devDependencies": {
     "@seamapi/fake-seam-connect": "1.72.1",
     "@seamapi/nextlove-sdk-generator": "1.14.6",
-    "@seamapi/types": "1.262.1",
+    "@seamapi/types": "1.263.0",
     "del": "^7.1.0",
     "prettier": "^3.2.5"
   }
diff --git a/seam/routes/access_codes.py b/seam/routes/access_codes.py
index 87f81a07..94fa5dc4 100644
--- a/seam/routes/access_codes.py
+++ b/seam/routes/access_codes.py
@@ -298,3 +298,40 @@ def update(
         self.client.post("/access_codes/update", json=json_payload)
 
         return None
+
+    def update_multiple(
+        self,
+        *,
+        common_code_key: str,
+        allow_external_modification: Optional[bool] = None,
+        code: Optional[str] = None,
+        ends_at: Optional[str] = None,
+        is_external_modification_allowed: Optional[bool] = None,
+        name: Optional[str] = None,
+        prefer_native_scheduling: Optional[bool] = None,
+        starts_at: Optional[str] = None
+    ) -> None:
+        json_payload = {}
+
+        if common_code_key is not None:
+            json_payload["common_code_key"] = common_code_key
+        if allow_external_modification is not None:
+            json_payload["allow_external_modification"] = allow_external_modification
+        if code is not None:
+            json_payload["code"] = code
+        if ends_at is not None:
+            json_payload["ends_at"] = ends_at
+        if is_external_modification_allowed is not None:
+            json_payload["is_external_modification_allowed"] = (
+                is_external_modification_allowed
+            )
+        if name is not None:
+            json_payload["name"] = name
+        if prefer_native_scheduling is not None:
+            json_payload["prefer_native_scheduling"] = prefer_native_scheduling
+        if starts_at is not None:
+            json_payload["starts_at"] = starts_at
+
+        self.client.post("/access_codes/update_multiple", json=json_payload)
+
+        return None
diff --git a/seam/routes/models.py b/seam/routes/models.py
index 82c7f111..cfd66e8b 100644
--- a/seam/routes/models.py
+++ b/seam/routes/models.py
@@ -2175,6 +2175,21 @@ def update(
     ) -> None:
         raise NotImplementedError()
 
+    @abc.abstractmethod
+    def update_multiple(
+        self,
+        *,
+        common_code_key: str,
+        allow_external_modification: Optional[bool] = None,
+        code: Optional[str] = None,
+        ends_at: Optional[str] = None,
+        is_external_modification_allowed: Optional[bool] = None,
+        name: Optional[str] = None,
+        prefer_native_scheduling: Optional[bool] = None,
+        starts_at: Optional[str] = None
+    ) -> None:
+        raise NotImplementedError()
+
 
 class AbstractDevices(abc.ABC):