Recently we applied Patch INV.RUP 14, after that users notice that
Purchase Order summary screen => Purchase Order Headers Block => Rate field, it shows the Foreign Currency Rate,
while it used to show Local Currency rate before applying the patch.
Does INV.RUP 14 patch change/amend on the PO behavior?
RUP is called "Oracle Inventory and Receiving (PO): Release 11.5.10, Rollup Patch 14". You see PO that why this patch can change this or another prerequisite. You can create SR in metalink it seems to be bug. Always after upgrade something is missing:)