/errors/asset_group_error.proto

--- v23/errors/asset_group_error.proto  2026-06-18 21:20:44.000000000 +0000
+++ v24/errors/asset_group_error.proto  2026-06-18 18:19:59.000000000 +0000
@@ -1,88 +1,92 @@
 // Copyright 2026 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.

 syntax = "proto3";

-package google.ads.googleads.v23.errors;
+package google.ads.googleads.v24.errors;

-option csharp_namespace = "Google.Ads.GoogleAds.V23.Errors";
-option go_package = "google.golang.org/genproto/googleapis/ads/googleads/v23/errors;errors";
+option csharp_namespace = "Google.Ads.GoogleAds.V24.Errors";
+option go_package = "google.golang.org/genproto/googleapis/ads/googleads/v24/errors;errors";
 option java_multiple_files = true;
 option java_outer_classname = "AssetGroupErrorProto";
-option java_package = "com.google.ads.googleads.v23.errors";
+option java_package = "com.google.ads.googleads.v24.errors";
 option objc_class_prefix = "GAA";
-option php_namespace = "Google\\Ads\\GoogleAds\\V23\\Errors";
-option ruby_package = "Google::Ads::GoogleAds::V23::Errors";
+option php_namespace = "Google\\Ads\\GoogleAds\\V24\\Errors";
+option ruby_package = "Google::Ads::GoogleAds::V24::Errors";

 // Proto file describing asset group errors.

 // Container for enum describing possible asset group errors.
 message AssetGroupErrorEnum {
   // Enum describing possible asset group errors.
   enum AssetGroupError {
     // Enum unspecified.
     UNSPECIFIED = 0;

     // The received error code is not known in this version.
     UNKNOWN = 1;

     // Each asset group in a single campaign must have a unique name.
     DUPLICATE_NAME = 2;

     // Cannot add asset group for the campaign type.
     CANNOT_ADD_ASSET_GROUP_FOR_CAMPAIGN_TYPE = 3;

     // Not enough headline asset for a valid asset group.
     NOT_ENOUGH_HEADLINE_ASSET = 4;

     // Not enough long headline asset for a valid asset group.
     NOT_ENOUGH_LONG_HEADLINE_ASSET = 5;

     // Not enough description headline asset for a valid asset group.
     NOT_ENOUGH_DESCRIPTION_ASSET = 6;

     // Not enough business name asset for a valid asset group.
     NOT_ENOUGH_BUSINESS_NAME_ASSET = 7;

     // Not enough marketing image asset for a valid asset group.
     NOT_ENOUGH_MARKETING_IMAGE_ASSET = 8;

     // Not enough square marketing image asset for a valid asset group.
     NOT_ENOUGH_SQUARE_MARKETING_IMAGE_ASSET = 9;

     // Not enough logo asset for a valid asset group.
     NOT_ENOUGH_LOGO_ASSET = 10;

     // Final url and shopping merchant url does not have the same domain.
     FINAL_URL_SHOPPING_MERCHANT_HOME_PAGE_URL_DOMAINS_DIFFER = 11;

     // Path1 required when path2 is set.
     PATH1_REQUIRED_WHEN_PATH2_IS_SET = 12;

     // At least one short description asset is required for a valid asset group.
     SHORT_DESCRIPTION_REQUIRED = 13;

     // Final url field is required for asset group.
     FINAL_URL_REQUIRED = 14;

     // Final url contains invalid domain name.
     FINAL_URL_CONTAINS_INVALID_DOMAIN_NAME = 15;

     // Ad customizers are not supported in asset group's text field.
     AD_CUSTOMIZER_NOT_SUPPORTED = 16;

     // Cannot mutate asset group for campaign with removed status.
     CANNOT_MUTATE_ASSET_GROUP_FOR_REMOVED_CAMPAIGN = 17;
+
+    // The asset group cannot be removed because it's the last one in the
+    // campaign.
+    CANNOT_REMOVE_ALL_ASSET_GROUPS_FROM_CAMPAIGN = 18;
   }
 }