DUPLICATE_EXTENSION_FEED_ITEM_EDIT when adding extensions to multiple ad groups in one API call

[JC Lee]

I am trying to assign an extension to 2 different at ad groups at once in one mutate call.

If the 2 ad groups are associated to the same extension (unrelated to the new extension being assigned). Then the error occurs.

To help illustrate when the error occurs, here are some scenarios:

Error occur scenario, has same extension

AdGroup A and AdGroup B

• Has an existing extension X
• Newly associating associating extension Y

No error scenario 1, empty extensions

AdGroup A and AdGroup B

• Has no extensions
• Newly associating associating extension Y

No error scenario 2, has different extensions

AdGroup A

• Has extension X
• Newly associating associating extension Y

AdGroup B

• Has extension Z
• Newly associating associating extension Y

I think the error is triggered because the logic is assuming I am editing the extension feed item X. Which I am not. I just want to add Y to both ad groups.

How do I work around this without relying on 2 different calls or batch job?

[JC Lee]

I need to add that I am using AdGroupExtensionSettingService.

[Ivan Bautista]

Hi JC,

To help us investigate further, could you reply to us privately with the SOAP request and response when you encountered the error?

Regards,

Ivan 

AdWords API Team

[JC Lee]

Hi Ivan,

Replying to your answer in the private reply here.

With further testing, I found that if I cleaned out the existing feed items of properties I am able to avoid the error.

In other words, in my example from my first post, the existing extension X on both ad groups must be void of properties except its feedItemId.

Maybe you guys should update the documentation to reflect this.

Best Regards,

JC