Can we removeAll the users first and then add new users to AdWords every day by API?

[Xiaowei He]

Hi team,

I have a concern about AdWords API(MutateMembersOperand), the API Doc link is:https://developers.google.com/adwords/api/docs/reference/v201809/AdwordsUserListService.MutateMembersOperand#members

I found this API has a limitation, the parameter of the API, membersList, the maximum value is 500,000, and the AdWords API is not support the operation of remove some specific users, it is only support remove all of the users.

In this case,  we can not update the userList to latest userList in time,  if we want delete some specific users, we can only execute "removeAll" first and then use the Api to add latest users to AdWords by API.

I have a few questions below.

1. Can we removeAll the users first and then add new users to AdWords every day by API?
2. Will this affect the AdWords campaign running? 
3. How much impact about these operation for AdWords campaign if we do like this?

Looking forward to your reply.

Thank you very much in advance.

Best,

Xiaowei

[Google Ads API Forum Advisor Prod]

Hi Xiaowei,

Thank you for reaching out. To clarify your statement, the mutateMembers() operation allows you to add or remove a list of members from the UserList. The amount of members in your userlist isn't capped at 500,000, the amount of members you can add/remove at a time (not including removeAll) is capped at 500,000. Now to answer your questions:

1. Yes, you can do this. You add members by creating your memberList then calling the mutateMembers ADD operation.
2. This won't impact the campaign running. However, just be advised that it can take 6 to 12 hours to populate the UserList as explained here.
3. You can see more information about operation counts here. Each member you add will be 1 operation.

Regards,
Mitchell
Google Ads API Team

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