Hypertext: Object Class - Class to which a document belongs.
Document Name
VV_J_3RFREGCUSTX
Use
You can use this customizing activity to enter text object IDs that are used to enter external document numbers and external document dates for incoming VAT invoices in the FI document header. To maintain text IDs you should use the text object Document Text (BELEG).
If you did not maintain text IDs or corresponding text fields are empty in the document, the external document number is taken from the Reference Document Number field (BKPF-XBLNR) and the external document date is taken from the Document Date field (BKPF-BLDAT).