Solution : https://service.sap.com/sap/support/notes/1167739 (SAP Service marketplace login required)
Key words :
goto menu extras/enhancement category, choose data type /scmb/df_doc_key, structure /scmb/df_doc_key, class /scmb/cl_df_document, terms /scmb/df_document_no, /scmb/df_partner_no reason, start transaction se112, document flow objects, enhancement category, component type
Related Notes :
| 1164447 | DF documents could not be found (too long identifiers) |
| 1089819 | Search method implementation |
| 977378 | Document Flow extended with Partner ID |