Unable to read Account using ZDK.Apps

Unable to read Account using ZDK.Apps

I'm trying to read an account with the following line of code:

  1. let r_AccountDetails = ZDK.Apps.CRM.Accounts.fetchById(v_AccountID);

I know v_AccountID is a valid account Id, but r_AccountDetails  is always undefined. I've tried hard coded account ids, it's always undefined.

This appears to be isolated to Accounts as I can retrieve a deal with ZDK.Apps.CRM.Deals.fetchById.

Any suggestions welcome.