Different behaviour for BP Roles FI Vendor and FI Customer

Hi

In Vendor Like UI, for BP role FLVN00 it is mandetory requirement to assign company code data. Here we can not create vender only with General Data

But in Customer Like UI,  for BP role FLVN00 it is not mandetory requirement to assign company code data. Here we can create customer only with General Data

What this type of different behaviour?