Programme SAP ISU_XPRA_ERCH_ERCHZ - Transfer of Franchise Contract Field from ERCH to ERCHZ

Description

First function
This XPRA copies all franchise contracts found in the header document(Erch) to the line items (Erchz).

Second function
If the "erch-zuorddaa" field is blank, it is provided with a value fromthe "erch-endabrpe" field.