Internal Numbering issue in Migration of Supplier Data using Migration Cockpit 2021

Hi Team,

We want to migrate the supplier data to target S4 system(2021 version) with Internal Numbering using migration cockpit. It seems there is no direct option for the supplier to get a internal number as it used to be in 1809 version(Mapping Task). if i populate any unique key in supplier number and BU account group with a code for Internal Numbering then then record gets migrated with the same Unique Key populated in the template and does not have a internal Number generated.

Can you please suggest urgently.

Thanks,

Shubham