S/4 HANA Finance Migration - Considerations...
1. GL, AP/AR and CO
If you want to implement the new GL, a separate project for implementing the new GL is recommended instead of combining new GL project with S/4 migration
2. Asset Accounting
If new asset accounting is not done already, it is recommended to make new AA as a separate project by itself instead of combining it with S/4 migration
3. Business Partner Customer Vendor Integration (CVI)
Depending upon the level of complexity, Business Partner Customer Vendor Integration may have to be dealt as a separate project by itself prior to S/4 HANA
4. Other FI/CO modules
Activation of "Material Ledger" is required for S/4 HANA. Possible separate mini project?