Solution : https://service.sap.com/sap/support/notes/918906 (SAP Service marketplace login required)
Key words :
variable size calculation requires, variable size formula, variable size items, attached correction instructions, variable-size item, variable-size item, change stpo-menge, stpo-menge, item category, planned change
Related Notes :
861443 | Incorrect comp. quant. for variable size items with obj Dep. |
68033 | Restrictions of characteristics planning |