This can occur because only one multi-plan 5500 return can be active simultaneously. That return has to have been e-filed (and an acknowledgment received) before another multi-plan return can be opened for editing or e-file.
If you receive this error after carrying forward multiple Form 5500 returns for one EIN, and they all are shown as inactive in the Open Existing Returns dialog box, contact Technical Support at 563-387-8900.
This information applies to all years of the UltimateTax software.
