Hi
There is no process note as such. You need to do the below steps:
1. Create Customers and Vendor master records. Now upload AP & AR Open Items
2. Next upload the Assets using AS91 and the Asset GL Balances
3. Create Material Master with price updated. Now upload Inventory balances using 561 Mtype
4. Upload the GL Balances for B/s and P&L Items.
The contra entry for all uploads above will go to Legacy Upload Accounts and the sum postings in Legacy Upload will total out to zero. Before you start uploading the balances make sure that it matches the legacy upload.
Additionally, if you are also client business is also relevant for excise you will also need to update the excise registers.
Thanks & regards
Sanil Bhandari