When there's an integration sync error with Jira on a custom field, Aha shows something like this:
'customfield_19011': Please fill out required fields
The identifier 19011 has no meaning to us, as Aha doesn't expose a mapping of our custom field names to identifiers.
Instead, please show the name of the custom field that had the error, e.g.
Custom field "Type of work": Please fill out required fields. That will allow us to self-diagnose the problem.