Migrating Business Partner data from SAP ERP to S4HANA ON PREMISE 2022 - Options?

We are migrating Business Partner(Vendor/Customer) information from SAP ERP 6.0 to S4HANA ON PREMISE 2022 - What are each the options disposable for the beneath scenarios?

1) Some BP's wide information are already created successful S/4 and needs to beryllium extended to caller purchasing enactment /company code. Is this considered arsenic delta load oregon archetypal load.

2)Other BPs each information to beryllium created. 

My knowing is that we tin usage Data Migration Cockpit and with nonstop transportation we tin migrate archetypal load from ECC to S/4.

We volition beryllium utilizing BODS for ETL. What are each the suggested attack here?

Thanks,

Prakash