post https://sandbox.finmid.com/api/v2/b2b-payments/sellers
Let's create/onboard a new seller. For this you'll need 2 things:
- Create a new ID for this seller (should map to your internal identifier)
- The seller's legal information. ⚠️ Note that one of either business_registration_number or tax_number must be provided on creation.
You should create a seller entity for every seller on your platform that can be part of a lending transaction.