# Add a Seller Extension Adds a seller to the Seller Extensions Master Data table. Endpoint: POST /add/SX Security: basic, X-PriceFx-jwt ## Request fields (application/json): - `data` (object) - `data.name` (string, required) The name of the Seller Extension Category. The Category settings can be found in the following location: Administration > Configuration > Master Data > Seller Master Extension - `data.sellerId` (string, required) - `operation` (string, required) ## Response 200 fields (application/json): - `response` (object) - `response.node` (string) - `response.data` (any) - `response.status` (integer)