I’m pretty sure it’s not possible, but maybe someone has an idea on how to exclude a vendor from one storefront, so that the shared categories etc does not pop up on this vendors product creation and so forth.
I know its possible manually, but ‘I’m looking for a way to configure this in the same manner as you would include one vendor to a specific storefront.
This can be achieved via the Vendor plans add-on. You can assign list of the categories and storefronts to the specific plan, then assign this plan to the vendor so this one vendor will be limited to limitations set in this vendor plan.