1) I want to know that what all different datas that are generally required from the legacy system to be migrated to SAP ISU.
for Eg. business partner , contract account , contract etc....
I mean to say basically cut over data during implementation
2) which fields are generally kept mandatory.
3) how it uploaded in SAP ISU. (for e.g. BDC , LSMW, EMIGALL etc)
4) is the data for business process like move in , open billing docs etc is also uploaded & how?
Your inputs are valuable ...