You can view a list of the vendors an individual user is associated with. These associations determine what they are able to see in their My Sales screen.
Steps:
Log into the admin area.
Go to Users & Groups > Users from the left menu.
Click Modify Filter to search for the relevant user.
Find and view the user by clicking on their username.
Click on the Vendor Association tab.
You will now be able to view the full list of vendors that the user is associated with across your auctioneers.
