Hey there 
We are currently setting up our first JIRA Service Management Project (free at the moment for testing).
To track service hours we usually use a monthly account in JIRA for each of our customers.
I already linked 2 accounts to the JSM Project and set one as default. Unfortunately the "Account" field won't show up inside the tickets. Furthermore I dont' see the "Account" field inside the "Fields" tab in the JSM project settings.
Am I missing something? How can I add the Account field to the service tickets?
Looking forward to your helpful advice 
Chris