Solution : https://service.sap.com/sap/support/notes/148544 (SAP Service marketplace login required)
Key words :
additional key words logs, form routines 'insert_connection', function group optb, missing document class, evaluate logs, document class, log settings, displaying documents, link table, reassigning documents
Related Notes :
| 149176 | |
| 88612 | Document class is lost during reassignment |