Solution : https://service.sap.com/sap/support/notes/77768 (SAP Service marketplace login required)
Key words :
additional key words billing document printout, 'reference number' field, respective entry date, program error solution, apply related note 73294, returns request, standard form, correct implementation, releases smaller, rv_billing_references
Related Notes :
| 81687 | Billing document printout - collective note |
| 81681 | Preceding SD doc. category in billing doc. printout |
| 73294 | Billing doc.print: credit memo with sched.agr. ref. |