Hey there, Zoho recently set up a Canadian datacenter which uses a different API URL for refresh tokens.
zohoapis.ca is the URL for API calls and zohocloud.ca is needed for the token. I had to build this for myself and am happy to answer questions since the Zoho documentation doesn’t mention the Canadian dc but it means that any new Zoho accounts from Canada can’t use the current Make.com Zoho CRM integration.
For quicker assistance with technical issues like these, you may want to contact support directly. They respond very quickly and update you frequently on the status of their investigation.
Hope you can share the resolution with us if you manage to solve this problem!
Hello @Ken 
Thank you very much for letting the community know about this. I’m sure all our Canadian Zoho CRM users will be incredibly grateful for your insights. Your offer to help navigate these changes is truly appreciated. 
I also wanted to say that in case you would like to see this change reflected in Make, feel free to log a request to App Improvement Ideas. It would be super helpful if you could include a link to a resource showing the changes in the API so that our devs can implement the changes.
Thank you again 
Thanks! I’ve submitted here, on that link, and a ticket so hopefully it’s taken care of.