Thank you for your reply.
I think that the meaning of the sentence “Components that have been build with FI-SL technology like Joint Venture Accounting, Public Sector etc.
are untouched and work as before.” is that the data related to public sector are stored in old table, not ACDOCA as before.
I think that funds Management(PSM-FM) should be activated and used for BCS as before in case of simple finance 2.0 (on-premise edition 1503).
I will report the error to SAP.