Material group relication from ECC to SRM.

Hi All,

We are using SRM 7.0

I tried to replicate some of the material group from ECC to SRM using R3AS by executing  for object DNL_CUST_PROD1 which has been replicated successfully.

But there are some material group which are not transferred in SRM, I checked in T023 table, these material group are present but they are not present in MARA table.

How to replicate such material groups?

Regards,

Anannya