Supplier portal BUGS

Hi guys
Does anyone use the Supplier Portal in their work? Has anyone figured out this weird thing?)
I configured the supplier role, gave him access to Axelor, but:

  1. He doesn’t get any messages that I send him a request
  2. He sees requests to other suppliers (this absolutely should not be)
  3. There are no buttons to answer a request or set a different price/quantity of product

It absolutely kills the whole point of this portal. The whole purchasing module was attractive only because of this portal and automatic requests to suppliers.

Axelor is a very cool product, maybe I’m doing something wrong. Please help, who already figured out this issue