Solution : https://service.sap.com/sap/support/notes/326824 (SAP Service marketplace login required)
Key words :
additional key words change budget billing plan, budget billing amount items, unblock item strg+f8, clearing document field, 'unblock item', partly paid, completely open, partial payment, missing functions, solution install
Related Notes :
435675 | BBP: EA63, information on the partial clearing |
350913 | ABP:Partly paid amnts. change, addtn to Note 326824 |
178528 | Unlocking budget billing and payment plan items |