That's generally an unhandled error and is specific to a project accounting piece of code. I think I saw it years ago related to missing data that  was moved in from eTimesheets but in invoice entry. Since it is a common piece of code called to validate PA data, it would imply the same problem in PO. If Support hasn't resolved this for you, validate the data being used to create the PO. If you haven't activated PA, there are some settings, cross-referenced data or corruption that is making this code think you are using it.

That's generally an unhandled error and is specific to a project accounting piece of code. I think I saw it years ago related to missing data that  was moved in from eTimesheets but in invoice entry. Since it is a common piece of code called to validate PA data, it would imply the same problem in PO. If Support hasn't resolved this for you, validate the data being used to create the PO. If you haven't activated PA, there are some settings, cross-referenced data or corruption that is making this code think you are using it.