Field Value inside of CRM Fails to change after calling UpdateRecord from Creator when using Zoho integration

Field Value inside of CRM Fails to change after calling UpdateRecord from Creator when using Zoho integration

Hi,

I am trying to call the zoho integration to change a field found on a Contacts record with updateRecord, however, following the documentation, it does not seem to change.

Here is my code:
 obj = {"Last Name":"ahhhhh"};
zoho.crm.updateRecord("Contacts",4968032000000338191,obj);

I am simply trying to execute the function so be able to change the last name, but the integration seems to run successfully but no changes are made. Would like to know where I might be going wrong.

Thank you