Solution : https://service.sap.com/sap/support/notes/853311 (SAP Service marketplace login required)
Key words :
attached source code correction, forbid goods issue posting, dm07m-umlgt reason, goods movement cancellation, wm storage location, goods movement, storage units, storage types, handling units, transaction hucanc
Related Notes :
1136116 | Reversal of goods movement possible although HU changed |
380945 | One-step stock transfer with WM and Handling Units |