middleware: extended Material to CRM Product, EEWB needed?

Hi all,

  If Material in ECC contains custom fields extended by EEWB to the MARA table, and these information are needed in CRM during replication, do I need to use EEWB to extend in CRM as well? (if yes, which table to be extended for product)

Or creating new attributes to the attribute set and assign it to CRM Product's set type will do?

Kindly advise.

cheers,

ginnie