- Create an Issue Picker scripted field with the "Multiple" checkbox ticked.
- Add it to a Create/Edit Issue screen.
- Go to the Field configuration page and set to required the field.
- Create/Edit an issue and leave the Multiple Issue Picker field empty.
It will still allow the creation/edit to complete instead of warning the user to fill in fields.
If no value is selected for the Multi Issue Picker, the ticket should not be created and an Error Message Should be returned stating that the field is is mandatory.
A temporary work around for this is to use the ScriptRunner Behaviour and set the field to required. Below is a sample code:-
Attached is a print screen of the behavior configuration