Hello,
Thanks for reaching out to the Google Ads API Forum.
For our team to further check, would you be able to share with us the complete API logs (request and response with request-id) generated on your end showing this error? You may send the requested logs via the Reply privately to author option. If this option is not available, you may send the details directly to our googleadsa...@google.com alias instead. Additionally, for your question on how to add customers to the allow-list, you need to contact your Google account manager to request for access to features accessible to customers on the allow-list.
Reference links:
Regards,
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Google Ads API Team |