/resources/account_link.proto

--- v11/resources/account_link.proto    2022-10-07 15:24:09.000000000 +0000
+++ v12/resources/account_link.proto    2022-10-07 15:24:10.000000000 +0000
@@ -72,6 +72,9 @@

     // Output only. Hotel link
     HotelCenterLinkIdentifier hotel_center = 9 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+    // Output only. Advertising Partner link
+    AdvertisingPartnerLinkIdentifier advertising_partner = 10 [(google.api.field_behavior) = OUTPUT_ONLY];
   }
 }

@@ -128,6 +131,20 @@
     (google.api.field_behavior) = IMMUTABLE,
     (google.api.resource_reference) = {
       type: "googleads.googleapis.com/Customer"
+    }
+  ];
+}
+
+// The identifier for the Advertising Partner Google Ads account.
+message AdvertisingPartnerLinkIdentifier {
+  // Immutable. The resource name of the advertising partner Google Ads account.
+  // This field is required and should not be empty when creating a new
+  // Advertising Partner link. It is unable to be modified after the creation of
+  // the link.
+  optional string customer = 1 [
+    (google.api.field_behavior) = IMMUTABLE,
+    (google.api.resource_reference) = {
+      type: "googleads.googleapis.com/Customer"
     }
   ];
 }