The Super Admin and Panel Administrators have the ability to allow Suppliers to filter the Local Groups that they can receive requests from. This is set within the list settings.
To provide this information to a Supplier, please use this link to the same article in the VendorPanel Supplier's Help Centre: https://vendorpanelsuppliers.zendesk.com/hc/en-us/articles/11569396964761-Managing-which-Buyer-Groups-you-receive-Requests-from
If enabled, Suppliers can manage the Buyer Groups for each list they are registered on by selecting Manage buyer groups under Supplier Lists on the homepage.
Here they will see all of the Supplier Lists they are registered on. They can click on the blue numbered button ( 'x' of 'y' ) to the right of the relevant list to view/manage their Buying Groups on that list.
For lists where they cannot manage their own Buying Groups, they will see a single number in the blue numbered button.
On the next page, they will see a list of all Local Groups that have access to use the Supplier List. They can uncheck the boxes for the Buying Groups that they don't want to receive requests from. They will need to click on Update to save their changes.