Hi Peter,

Thanks for the reply. To clarify, as far as the API is concerned, and any 
terms relating to the use of the API, we should be okay setting an expiry 
of '10000' on CrmBasedUserLists, even if we upload files such that 
CustomerMatchUploadKeyType is MOBILE_ADVERTISING_ID? In that case, it would 
seem like if there is a rule requiring Mobile Advertising IDs to expire 
after 540 days, that that may be something controlled internally, and need 
not be set via the API on the UserList object?

Thanks again,


On Wednesday, February 21, 2018 at 9:58:04 PM UTC-8, Peter Oliquino wrote:
> Hi Robert,
> In the AdWords API perspective, I can confirm that you can set your 
> CrmBasedUserList object's MemberShipLifeSpan 
> <https://developers.google.com/adwords/api/docs/reference/v201710/AdwordsUserListService.UserList#membershiplifespan>
>  to 
> "10000" which should translate to "no expiration". As for the AdWords UI, I 
> looked further into the documentation that you sent and came across this 
> guide <https://support.google.com/adwords/answer/6379332>, which under 
> the "Membership duration" section, says that its duration is already 
> unlimited by default.
> However, since the AdWords UI part is already out of our team's scope, you 
> may confirm this information with the product experts at the AdWords 
> Community Forum 
> <https://www.en.advertisercommunity.com/t5/Google-AdWords/ct-p/Google_AdWords#>
>  as 
> they are better equipped to provide you with the information you need.
> Best regards,
> Peter
> AdWords API Team

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