Solution : https://service.sap.com/sap/support/notes/506077 (SAP Service marketplace login required)
Key words :
stdval data element mc_stdval andnosplit data element mc_nosplitbefore, nosplit data element mcbgl_val_nosplitvaluation data element mcbgl_valuationsave, text symbol 037 - safety stock buffer - parameter mlen = 18, nosplit data element mcbgl_val_nosplitsave, inventory controlling composite sap note, standard cost estimate release, newly created data elements, data elementsand structure mcbeleg, delete unnecessary selection texts, safety stock buffer