Hello,

I downloaded a module which one of its field is reference this field is being filled automatically from (new to a number ex:INV 001etc..) when we save the form.

My database is multi-company and when I work on the first company this works fine but when I change companies to the other one and try to save my form I got this error:

The operation cannot be completed: - Create/update: a mandatory field is not set. - Delete: another model requires the record being deleted. If possible, archive it instead. Model: Action (mgmtsystem.action), Field: Reference (reference)

Is it because the module is not multi-company and how will I do it multi-company if yes? 

Or is there any other problem or solution to fix that error?

Thanks&Regards