Hi, Thank you for reaching out to the Google Ads API support team.
As per the provided information, I understand that you are encountering an INVALID_CHANGE error. This error indicates that the change for the mutate link is invalid. I would recommend you refer to this CustomerManagerLinkService documentation to learn more about it and to know the valid request body for this service. Additionally, I would suggest Linking to Manager Accounts documentation for more detailed information. In order to assist you further, kindly share the complete updated API logs (request and response logs with request-id and request header) generated at your end to assist you better. If you are using a client library and haven't enabled the logging yet, I would request you to enable logging for the specific client library that you are using. You can refer to the guides PHP to enable logging at your end. For REST interface requests, you can enable logging via the curl command by using the -i flag. Also, please be informed that currently v20 is the latest version in the Google Ads API. So, I would suggest you upgrade to the latest version, as soon as possible to benefit from new features. You may refer to this 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? [2025-08-07 06:39:11Z GMT] This message is in relation to case "ref:!00D1U01174p.!5004Q02AIcAw:ref" (ADR-00055908) -- -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ 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/EsjF8000000000000000000000000000000000000000000000T0M2HB00wIW4PBX-R72VW3ZgP7TPnA%40sfdc.net.
