B2B design for adding product in tender

Tenders on the B2B marketplace are a common occurrence. However, these are often still separate marketplaces ))

Tenders work in a classic way — the buyer creates an order, and sellers give him their offers. The buyer chooses the one he likes among them and they make a deal.

But there is a caveat. The buyer creates a tender on the marketplace, and the seller makes a response in his office. These are two separate entities.

And in this cabinet there is an interface for adding goods to the buyer's tender positions.