We plan to migrate the Customer and Vendor master data to SAP S/4 Hana from legacy systems.
Can we renumber these active Customer and Vendor nos. in SAP number ranges without impacting the open items ( AR / AP/ Invoice/ Sales order) at the time of cut over ?
How will SAP correlate an open item with the new customer nos in SAP ? Or do we need to continue with the legacy numbering for customer / vendor?