Migration SAP BPC SAP BPC 7.5 to 10.1 - F_100

Hi Gurus

I have a complication , I'm migrating from BPC BPC 7.5 to 10.1, but when you run the consolidation some data changes in SAP BPC 7.5 from F_999 to F_100

How do I do that in SAP BPC 10.1 ?

Thanks

Nayadeth Jeldres