Hi, Thank you for contacting the Google Ads API support team.
Based on the request Id provided, I understand that you are encountering FieldError.REQUIRED error while trying to create an ad group criterion with the criterion as userList. Please refer to the following sample request body and confirm whether the request body present in the logs generated is of the same format or some field is missing. { "operations": [ { "create": { "userList": { "userList": "<Enter user_list resource name here in the format customers/{customerId}/userLists/{userListId}>" } } } ] } If you have followed the above format and still you are encountering the error, kindly get back to us with complete API logs (request and response with request-id and request header) generated at your end without redacting any information. Based on the email subject, I understand that you are using the Python client library. So, if you haven't enabled the logging yet, I would request you to enable logging for the Python client library. You may refer to the guide Python to enable logging at your end. You can enable logging via the curl command by using the -i flag for REST interface requests. I noticed that you are using version V18 of Google Ads API. Please note that ‘v18’ will be deprecated in June 2025 and will sunset in September 2025. I would recommend you to upgrade to the latest version, 'v19', as soon as possible to benefit from new features. You may refer to the documentation on deprecation and sunset for more information regarding the specific deprecation and sunset dates for each available version. You can send the details via Reply privately to the author option, or direct private reply to this email. Thanks, Google Ads API Team Feedback How was our support today? [2025-03-07 15:05:50Z GMT] This message is in relation to case "ref:!00D1U01174p.!5004Q02vH75l:ref" (ADR-00292246) -- -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ 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 "Google Ads API and AdWords API Forum" group. To unsubscribe from this group and stop receiving emails from it, send an email to adwords-api+unsubscr...@googlegroups.com. To view this discussion visit https://groups.google.com/d/msgid/adwords-api/5A2tD000000000000000000000000000000000000000000000SSRDXQ00csXB1qtdQ2aBMZQ5abCvOQ%40sfdc.net.