Hi,
I created an advertisement through the API with two titles and descriptions, and then I called the modify advertisement API, but i got an error "Field 'ad.app_ad.images' cannot be modified by 'UPDATE' operation."
Is this because my FieldMask is wrong? Or is it that the interface does not support modifying creatives?
The FieldMask I filled in is "Paths: []string{'ad.app_ad.images'}"
Looking forward to your reply.
Below is my request body and response body:
request:&services.MutateAdGroupAdsRequest{state:impl.MessageState{NoUnkeyedLiterals:pragma.NoUnkeyedLiterals{}, DoNotCompare:pragma.DoNotCompare{}, DoNotCopy:pragma.DoNotCopy{}, atomicMessageInfo:(*impl.MessageInfo)(nil)}, sizeCache:0, unknownFields:[]uint8(nil), CustomerId:"9878974158", Operations:[]*services.AdGroupAdOperation{(*services.AdGroupAdOperation)(0xc0004134a0)}, PartialFailure:false, ValidateOnly:false, ResponseContentType:0}
response:
{"level":"error","msg":"error:\u0026errorpkg.Status{Code:3, Platform:\"Google\", Reason:\"IMMUTABLE_FIELD\", Message:\"Field 'ad.app_ad.images' cannot be modified by 'UPDATE' operation.\", Details:\"Request contains an invalid argument.\", RequestID:\"JOEF97DNxa1P59wmtDQWnA\"}","time":"2022-06-02T10:47:56+08:00"}