Solution : https://service.sap.com/sap/support/notes/198031 (SAP Service marketplace login required)
Key words :
error message jk801 'internal error, functions 'generate single issue return', additional key words sapmjkrr, importing order schedule lines, 'generate summarized return', relevant schedule line, schedule lines, schedule line, return period, basic order
Related Notes :
| 196224 | MSD: Missing sched.lines in returned copies display |
| 193633 | IS-M: Overview of corrections for Release 4.02/3 |