Solution : https://service.sap.com/sap/support/notes/918925 (SAP Service marketplace login required)
Key words :
getwa_not_assigned runtime error occurs, source code corrections, lower-level hu, error occurs, multilevel hu, handling unit, material document, terms saplcohu, lcohuu24 reason, handling units
Related Notes :
| 1136116 | Reversal of goods movement possible although HU changed |