private static void deleteLegacySitelinks(CampaignAdExtensionService campaignExtensionService, CampaignAdExtension extensionToDelete) { CampaignAdExtensionOperation operation = new CampaignAdExtensionOperation(); operation.@operator = Operator.REMOVE; operation.operand = extensionToDelete; campaignExtensionService.mutate(new CampaignAdExtensionOperation[] {operation}); }