Solution : https://service.sap.com/sap/support/notes/840077 (SAP Service marketplace login required)
Key words :
system displays error message glt2 201, terms document splitting, prerequisites document splitting, document splitting expects, account line items, account assignment check, account assignment, line item &2, balancing field, amount fields
Related Notes :
| 1085921 | Document split |
| 768184 | Online splitter: SD billing documents only with tax tems |