Bill rates and amounts appear in reports for Purchase Orders (POs) without associated bills due to the current behavior of the system after a Material Receipt Note (MRN) bill is deleted. When a bill is removed, the system updates only the Bill ID and Bill Quantity, but it does not modify or clear the Bill Rate and Bill Amount fields.

Because of this, the previous rate and amount values remain stored in the database and continue to appear in reports, even though the bill no longer exists.