Solution : https://service.sap.com/sap/support/notes/1286877 (SAP Service marketplace login required)
Key words :
badi 'crm_bri_group_badi' method get_price_change_dates, billing request items, terms crm leasing, call transaction se18, badi 'crm_bri_group_badi'refer, individual methods get_price_change_dates, vat change reason, choose implementation -> change, change existing implementaion, badi 'crm_bri_group_badi'
Related Notes :
| 1158012 | Service rendered date for periodic billing plan items wrong |
| 994099 | VAT increase in Germany on 01.01.2007 |