Solution : https://service.sap.com/sap/support/notes/151169 (SAP Service marketplace login required)
Key words :
additional key words co41, system writes empty fields, system generates error message 639, copy field values, function group saplcobc, manufacturing orders generated, collective conversion differs, planned order dates, error message 639, system behavior
Related Notes :
171134 | Error when plnd order convrtd into prod./proc.order |
113906 | Incorrect scrap qty when converting planned order |