2596940 - You Cannot Change the Posting Date in a Supplier Invoice In Process

You are creating and saving a New Supplier Invoice. The Supplier Invoice has the status In Process. You now want to change the Posting Date of the Supplier Invoice but this is not possible as the Posting Date field is grayed out.

SAP Business ByDesign

Supplier Invoice, New Supplier Invoice, Saved, In Process, Posting Date, cannot change, can't change, unable to change, cannot adjust, can't adjust, unable to adjust, cannot modify, can't modify, unable to modify, Posting Date field, greyed out , KBA , AP-SIP-SIV , Supplier Invoice , Problem