diff --git a/packages/google-ads-datamanager/protos/google/ads/datamanager/v1/error.proto b/packages/google-ads-datamanager/protos/google/ads/datamanager/v1/error.proto
index 60d0efe4dd6..97cc0a11ccd 100644
--- a/packages/google-ads-datamanager/protos/google/ads/datamanager/v1/error.proto
+++ b/packages/google-ads-datamanager/protos/google/ads/datamanager/v1/error.proto
@@ -339,4 +339,11 @@ enum ErrorReason {
 
   // The user list membership duration is too long.
   MEMBERSHIP_DURATION_TOO_LONG = 99;
+
+  // The `merchant_id` field is not valid.
+  INVALID_MERCHANT_ID = 100;
+
+  // The customer contains non-exempt campaigns without the EU political
+  // advertising declaration.
+  EU_POLITICAL_ADVERTISING_DECLARATION_REQUIRED = 101;
 }
diff --git a/packages/google-ads-datamanager/protos/google/ads/datamanager/v1/partner_link_service.proto b/packages/google-ads-datamanager/protos/google/ads/datamanager/v1/partner_link_service.proto
index 32b62f42f12..fc4acbaa79f 100644
--- a/packages/google-ads-datamanager/protos/google/ads/datamanager/v1/partner_link_service.proto
+++ b/packages/google-ads-datamanager/protos/google/ads/datamanager/v1/partner_link_service.proto
@@ -48,9 +48,6 @@ service PartnerLinkService {
   //   Google Account of the credentials is a user. If not set, defaults to the
   //   account of the request. Format:
   //   `accountTypes/{loginAccountType}/accounts/{loginAccountId}`
-  // * `linked-account`: (Optional) The resource name of the account with an
-  //    established product link to the `login-account`. Format:
-  //    `accountTypes/{linkedAccountType}/accounts/{linkedAccountId}`
   rpc CreatePartnerLink(CreatePartnerLinkRequest) returns (PartnerLink) {
     option (google.api.http) = {
       post: "/v1/{parent=accountTypes/*/accounts/*}/partnerLinks"
@@ -70,9 +67,6 @@ service PartnerLinkService {
   //   Google Account of the credentials is a user. If not set, defaults to the
   //   account of the request. Format:
   //   `accountTypes/{loginAccountType}/accounts/{loginAccountId}`
-  // * `linked-account`: (Optional) The resource name of the account with an
-  //    established product link to the `login-account`. Format:
-  //    `accountTypes/{linkedAccountType}/accounts/{linkedAccountId}`
   rpc DeletePartnerLink(DeletePartnerLinkRequest)
       returns (google.protobuf.Empty) {
     option (google.api.http) = {
@@ -92,9 +86,6 @@ service PartnerLinkService {
   //   Google Account of the credentials is a user. If not set, defaults to the
   //   account of the request. Format:
   //   `accountTypes/{loginAccountType}/accounts/{loginAccountId}`
-  // * `linked-account`: (Optional) The resource name of the account with an
-  //    established product link to the `login-account`. Format:
-  //    `accountTypes/{linkedAccountType}/accounts/{linkedAccountId}`
   rpc SearchPartnerLinks(SearchPartnerLinksRequest)
       returns (SearchPartnerLinksResponse) {
     option (google.api.http) = {
diff --git a/packages/google-ads-datamanager/protos/protos.d.ts b/packages/google-ads-datamanager/protos/protos.d.ts
index d064b3ecb39..c16044ba152 100644
--- a/packages/google-ads-datamanager/protos/protos.d.ts
+++ b/packages/google-ads-datamanager/protos/protos.d.ts
@@ -2152,7 +2152,9 @@ export namespace google {
                     UNSUPPORTED_INGESTED_USER_LIST_INFO_CONFIG = 96,
                     UNSUPPORTED_ACCOUNT_TYPES_FOR_USER_LIST_TYPE = 97,
                     UNSUPPORTED_ACCOUNT_TYPE_FOR_PARTNER_LINK = 98,
-                    MEMBERSHIP_DURATION_TOO_LONG = 99
+                    MEMBERSHIP_DURATION_TOO_LONG = 99,
+                    INVALID_MERCHANT_ID = 100,
+                    EU_POLITICAL_ADVERTISING_DECLARATION_REQUIRED = 101
                 }
 
                 /** Properties of an Event. */
diff --git a/packages/google-ads-datamanager/protos/protos.js b/packages/google-ads-datamanager/protos/protos.js
index 584fc1f1999..ef327392a2e 100644
--- a/packages/google-ads-datamanager/protos/protos.js
+++ b/packages/google-ads-datamanager/protos/protos.js
@@ -5262,6 +5262,8 @@
                      * @property {number} UNSUPPORTED_ACCOUNT_TYPES_FOR_USER_LIST_TYPE=97 UNSUPPORTED_ACCOUNT_TYPES_FOR_USER_LIST_TYPE value
                      * @property {number} UNSUPPORTED_ACCOUNT_TYPE_FOR_PARTNER_LINK=98 UNSUPPORTED_ACCOUNT_TYPE_FOR_PARTNER_LINK value
                      * @property {number} MEMBERSHIP_DURATION_TOO_LONG=99 MEMBERSHIP_DURATION_TOO_LONG value
+                     * @property {number} INVALID_MERCHANT_ID=100 INVALID_MERCHANT_ID value
+                     * @property {number} EU_POLITICAL_ADVERTISING_DECLARATION_REQUIRED=101 EU_POLITICAL_ADVERTISING_DECLARATION_REQUIRED value
                      */
                     v1.ErrorReason = (function() {
                         var valuesById = {}, values = Object.create(valuesById);
@@ -5365,6 +5367,8 @@
                         values[valuesById[97] = "UNSUPPORTED_ACCOUNT_TYPES_FOR_USER_LIST_TYPE"] = 97;
                         values[valuesById[98] = "UNSUPPORTED_ACCOUNT_TYPE_FOR_PARTNER_LINK"] = 98;
                         values[valuesById[99] = "MEMBERSHIP_DURATION_TOO_LONG"] = 99;
+                        values[valuesById[100] = "INVALID_MERCHANT_ID"] = 100;
+                        values[valuesById[101] = "EU_POLITICAL_ADVERTISING_DECLARATION_REQUIRED"] = 101;
                         return values;
                     })();
     
diff --git a/packages/google-ads-datamanager/protos/protos.json b/packages/google-ads-datamanager/protos/protos.json
index 2a824acaf80..d990a67211e 100644
--- a/packages/google-ads-datamanager/protos/protos.json
+++ b/packages/google-ads-datamanager/protos/protos.json
@@ -633,7 +633,9 @@
                         "UNSUPPORTED_INGESTED_USER_LIST_INFO_CONFIG": 96,
                         "UNSUPPORTED_ACCOUNT_TYPES_FOR_USER_LIST_TYPE": 97,
                         "UNSUPPORTED_ACCOUNT_TYPE_FOR_PARTNER_LINK": 98,
-                        "MEMBERSHIP_DURATION_TOO_LONG": 99
+                        "MEMBERSHIP_DURATION_TOO_LONG": 99,
+                        "INVALID_MERCHANT_ID": 100,
+                        "EU_POLITICAL_ADVERTISING_DECLARATION_REQUIRED": 101
                       }
                     },
                     "Event": {
diff --git a/packages/google-ads-datamanager/samples/generated/v1/snippet_metadata_google.ads.datamanager.v1.json b/packages/google-ads-datamanager/samples/generated/v1/snippet_metadata_google.ads.datamanager.v1.json
index 667a8a395a7..64f8cb59a96 100644
--- a/packages/google-ads-datamanager/samples/generated/v1/snippet_metadata_google.ads.datamanager.v1.json
+++ b/packages/google-ads-datamanager/samples/generated/v1/snippet_metadata_google.ads.datamanager.v1.json
@@ -283,7 +283,7 @@
       "regionTag": "datamanager_v1_generated_PartnerLinkService_CreatePartnerLink_async",
       "title": "IngestionService createPartnerLink Sample",
       "origin": "API_DEFINITION",
-      "description": " Creates a partner link for the given account. Authorization Headers: This method supports the following optional headers to define how the API authorizes access for the request: * `login-account`: (Optional) The resource name of the account where the   Google Account of the credentials is a user. If not set, defaults to the   account of the request. Format:   `accountTypes/{loginAccountType}/accounts/{loginAccountId}` * `linked-account`: (Optional) The resource name of the account with an    established product link to the `login-account`. Format:    `accountTypes/{linkedAccountType}/accounts/{linkedAccountId}`",
+      "description": " Creates a partner link for the given account. Authorization Headers: This method supports the following optional headers to define how the API authorizes access for the request: * `login-account`: (Optional) The resource name of the account where the   Google Account of the credentials is a user. If not set, defaults to the   account of the request. Format:   `accountTypes/{loginAccountType}/accounts/{loginAccountId}`",
       "canonical": true,
       "file": "partner_link_service.create_partner_link.js",
       "language": "JAVASCRIPT",
@@ -327,7 +327,7 @@
       "regionTag": "datamanager_v1_generated_PartnerLinkService_DeletePartnerLink_async",
       "title": "IngestionService deletePartnerLink Sample",
       "origin": "API_DEFINITION",
-      "description": " Deletes a partner link for the given account. Authorization Headers: This method supports the following optional headers to define how the API authorizes access for the request: * `login-account`: (Optional) The resource name of the account where the   Google Account of the credentials is a user. If not set, defaults to the   account of the request. Format:   `accountTypes/{loginAccountType}/accounts/{loginAccountId}` * `linked-account`: (Optional) The resource name of the account with an    established product link to the `login-account`. Format:    `accountTypes/{linkedAccountType}/accounts/{linkedAccountId}`",
+      "description": " Deletes a partner link for the given account. Authorization Headers: This method supports the following optional headers to define how the API authorizes access for the request: * `login-account`: (Optional) The resource name of the account where the   Google Account of the credentials is a user. If not set, defaults to the   account of the request. Format:   `accountTypes/{loginAccountType}/accounts/{loginAccountId}`",
       "canonical": true,
       "file": "partner_link_service.delete_partner_link.js",
       "language": "JAVASCRIPT",
@@ -367,7 +367,7 @@
       "regionTag": "datamanager_v1_generated_PartnerLinkService_SearchPartnerLinks_async",
       "title": "IngestionService searchPartnerLinks Sample",
       "origin": "API_DEFINITION",
-      "description": " Searches for all partner links to and from a given account. Authorization Headers: This method supports the following optional headers to define how the API authorizes access for the request: * `login-account`: (Optional) The resource name of the account where the   Google Account of the credentials is a user. If not set, defaults to the   account of the request. Format:   `accountTypes/{loginAccountType}/accounts/{loginAccountId}` * `linked-account`: (Optional) The resource name of the account with an    established product link to the `login-account`. Format:    `accountTypes/{linkedAccountType}/accounts/{linkedAccountId}`",
+      "description": " Searches for all partner links to and from a given account. Authorization Headers: This method supports the following optional headers to define how the API authorizes access for the request: * `login-account`: (Optional) The resource name of the account where the   Google Account of the credentials is a user. If not set, defaults to the   account of the request. Format:   `accountTypes/{loginAccountType}/accounts/{loginAccountId}`",
       "canonical": true,
       "file": "partner_link_service.search_partner_links.js",
       "language": "JAVASCRIPT",
diff --git a/packages/google-ads-datamanager/src/v1/partner_link_service_client.ts b/packages/google-ads-datamanager/src/v1/partner_link_service_client.ts
index fa013762498..db057a159bd 100644
--- a/packages/google-ads-datamanager/src/v1/partner_link_service_client.ts
+++ b/packages/google-ads-datamanager/src/v1/partner_link_service_client.ts
@@ -363,9 +363,6 @@ export class PartnerLinkServiceClient {
  *   Google Account of the credentials is a user. If not set, defaults to the
  *   account of the request. Format:
  *   `accountTypes/{loginAccountType}/accounts/{loginAccountId}`
- * * `linked-account`: (Optional) The resource name of the account with an
- *    established product link to the `login-account`. Format:
- *    `accountTypes/{linkedAccountType}/accounts/{linkedAccountId}`
  *
  * @param {Object} request
  *   The request object that will be sent.
@@ -473,9 +470,6 @@ export class PartnerLinkServiceClient {
  *   Google Account of the credentials is a user. If not set, defaults to the
  *   account of the request. Format:
  *   `accountTypes/{loginAccountType}/accounts/{loginAccountId}`
- * * `linked-account`: (Optional) The resource name of the account with an
- *    established product link to the `login-account`. Format:
- *    `accountTypes/{linkedAccountType}/accounts/{linkedAccountId}`
  *
  * @param {Object} request
  *   The request object that will be sent.
@@ -583,9 +577,6 @@ export class PartnerLinkServiceClient {
  *   Google Account of the credentials is a user. If not set, defaults to the
  *   account of the request. Format:
  *   `accountTypes/{loginAccountType}/accounts/{loginAccountId}`
- * * `linked-account`: (Optional) The resource name of the account with an
- *    established product link to the `login-account`. Format:
- *    `accountTypes/{linkedAccountType}/accounts/{linkedAccountId}`
  *
  * @param {Object} request
  *   The request object that will be sent.