Solution : https://service.sap.com/sap/support/notes/199127 (SAP Service marketplace login required)
Key words :
additional key words mm-spstock, function modules <table >_ extend, valid previous period stocks, qbew remain unchanged, previous period values, special stock archiving, previous period, special stocks, period closing, batch archiving
Related Notes :
| 392393 | MM_SPSTOCK: Previous year's balance not checked |