Hi Pranav, Thank you for providing the additional information.
As per the error message you encountered, it appears that you are using Feed-based extensions for creating the site-links. So, could you confirm whether you are using the Asset-based extensions or Feed-based extensions? If you are using the Feed-based extensions, kindly note that Google Ads has introduced Asset-based extensions. Asset-based extensions will replace the Feed-based extensions. All the previous Feed-based extensions are automatically migrated in two batches. You should migrate any Feed-based extensions and related code that you intend to continue to use to Asset-based extensions as soon as is feasible. You should remove Feed-based extensions after migrating; for a given extension type, any Asset-based extensions will serve instead of Feed-based extensions. See our extensions migration guide for details. After the automatic migration dates, you will no longer be able to create or mutate Feed-based extensions in the AdWords API or the Google Ads API. Feed-based extensions will no longer generate new data. You may refer to this Blog Post for more information. If you are using the Asset-based extensions then kindly provide us with the API endpoint or the HTTP request to investigate further. This message is in relation to case "ref:!00D1U01174p.!5004Q02r45Mc:ref" Thanks, Google Ads 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 "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 on the web visit https://groups.google.com/d/msgid/adwords-api/mlwF5000000000000000000000000000000000000000000000S6FSA800JbeS9U8OR0exMM_up0N33A%40sfdc.net.