Solution : https://service.sap.com/sap/support/notes/672054 (SAP Service marketplace login required)
Key words : 
terms cnmseg reason, accessing table cnmseg, select documents, goods movement, program error, solution change, source code, dbif_rsql_sql_error, prerequisites, performance
Related Notes : 
       
| 306293 | PROMAN: Project-oriented material management |