Hello Maxim,
I assume that you're looking for some information about SAP Reinsurance Management capabilities. I therefor enclosed a link which could be of assistance to you.
Please select the topic <Basis> and then step into <Treaty> resp. <Treaty Groups> to get some more details.
It would be helpful if you can give some more information, i.e. where do you like to have the mapping for the reinsurance treaty (at policy system, at P2R interface, or at SAP Reinsurance Management), are there only treaties which need to be considered or also some facultative reinsurance, do you need the FGU functionality for treaty assignment, do you need to consider proportional or also XL?
If above answer is already helpful for you, please mark as answered or helpful. In case you need some further details, please come back to me.
Best regards
Karsten
Industry Principal Insurance, MEE