Flow of Account from ECC to CRM(Middleware)

Hi Experts,

I have an Understanding Doubt, about the flow of Customer from ECC to CRM.

My Doubt is:

I have created a Customer in ECC as a Sold To Party id 0070001234, This Customer as a Account will Create in CRM as a Sold to Party. I am clear on this.

Now I have created Partner functions for the same Account 0070001234, as Ship to Party. Here is my Doubt: in CRM how the replication take place.

Whether it will create with a BP Role Ship to party, or in the Relationship tab, it will create one more ship to party or any different way.?

Can anyone explain this concept..?

Regards,

SAP Adherent.