Solution : https://service.sap.com/sap/support/notes/311262 (SAP Service marketplace login required)
Key words : 
additional key words contract, commission contract start date, commission contract end date, solution import add-, contract reversed, error occurs, special case, support package 003, prerequisites
Related Notes : 
       
| 310744 | Collective note SAP Insurance 4.61 - Add-On SP 003 |