If we maintain revision level for the material in material master and there is a PO for this material. If we change now revision level from 1 to 2 for this part. Does this revision level 2 is reflected in PO?. If it is reflected, then how the revision level 2 is displayed directly? or the PO displays only he current rev of the material master regardless of what the rev was when the PO was created and communicated to the supplier.