Make Help Center articles visible to the right people

Make Help Center articles visible to the right people

We are using our help center to support customers and partners. Our partners support our customers worldwide. All are registered users and have to logon to our help portal to raise a ticket and see knowledge articles. Some articles however, should only be visible to our partners, not to our customers.  We rather do not make our partners agents in our system.

Our current solution is to give a clear warning at the top of a partner article that this article is meant for partners and that customers should not try this themselves. Not very chique....

I am curious to know how other organizations have solved this?