Tax classification not copied from reference partner

Hello,

In the user module we assigned a reference business partner which is created in CRM with roles Business Partner, Internet User and Sold-To Party.

When we register a new user in WCEM, the user is getting created with the appropriate roles but the Tax classification is not copied from the reference partner to the new user.

Can you please advise if it's a normal behaviour or if something need to be changed?

Thanks a lot

Nicolas