Solution : https://service.sap.com/sap/support/notes/145309 (SAP Service marketplace login required)
Key words :
system generates error message ah804, base period category = 'x', additional key words ea00, budget billing plan creation, budget billing plan, solution apply add-, billing unit, program error, apply add-, installed technically
Related Notes :
| 145305 | Collective note IS-U/CCS 1.2 - Add-on patch 002 |
| 144644 | Extrapolation with base period type = 'X' |