Solution : https://service.sap.com/sap/support/notes/1061863 (SAP Service marketplace login required)
Key words :
system displays error message /scwm/ui 033, scwm/ui 033 reason, transaction /scwm/tu, attached correction instructions, select handling units, program error, handling units, handling unit, outbound delivery, selection screen
Related Notes :
| 1109846 | Composite SAP note for performance in transaction /SCWM/TU |