Break Data into Groups for SAP BAPI

Hello Experts,

We are using Data Services to load data from different source system to SAP ECC, we are using SAP BAPI. We need to break the data into groups because we can't push all the data from source to ECC in one strech, so I need to break the data into groups.

For Example: We have 1 millions rows in source that needs be loaded in SAP, need to break down data into groups let's say 50,000 records.

Could you please let me how to handle this in DS.

Thanks,

Nishith