Hi Lorena, Due to the recent update <https://support.google.com/adspolicy/answer/9158709?hl=en&ref_topic=29265> of policy of Customer Match, your request for mutating CrmBasedUserList will fail if the advertiser account hasn't been whitelisted for using the feature. Currently, it is not possible to test this feature against the test account. if you are facing this issue against the production account, you can contact your Google account representative to get your account whitelisted. If the account belongs to your customers, they need to contact their Google representative for whitelisting. For more information, please refer to this blog <https://ads-developers.googleblog.com/2018/11/update-to-customer-match-requirements.html> post for more information.
Let me know if you have any further questions. Thanks, Milind, AdWords API Team -- -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ Also find us on our blog: https://googleadsdeveloper.blogspot.com/ =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ You received this message because you are subscribed to the Google Groups "AdWords API and Google Ads API Forum" group. To post to this group, send email to adwords-api@googlegroups.com To unsubscribe from this group, send email to adwords-api+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/adwords-api?hl=en --- You received this message because you are subscribed to the Google Groups "AdWords API and Google Ads API Forum" group. To unsubscribe from this group and stop receiving emails from it, send an email to adwords-api+unsubscr...@googlegroups.com. Visit this group at https://groups.google.com/group/adwords-api. To view this discussion on the web visit https://groups.google.com/d/msgid/adwords-api/b74742b3-7190-4186-8bcb-d67baab6806c%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.