I can't match PO using PO Matching. I am receiving this error.
Function LedgerVoucer.addTrans has been incorrectly called

I can't match PO using PO Matching. I am receiving this error.
Function LedgerVoucer.addTrans has been incorrectly called
Hello AXCalvin,
Can you please confirm that posting had been setup for item group/ category used on the PO line(s)?