Solution : https://service.sap.com/sap/support/notes/182041 (SAP Service marketplace login required)
Key words :
field/structure optional reference doc_number vbrk-vbeln, additional key words vf01, set import parameter doc_number, user exit customer-function '008', import parameter doc_number, user exitcustomer-function '008', import parameter ref, abap/4 function library, function module exit_saplv60b_008, program termination occurs
Related Notes :
| 301077 | User exits for the interface for accounting |
| 186240 | CUSTOMER-FUNCTIONs without processed document number |
| 174699 | CUSTOMER-FUNCTION '008' without processed docNo. |