I have 2 different communities - Partner & Customer. There is this use case of having Partners accessing the Customer community also because of business model client do.
What I was planning to have Permission set for to which Partners will be assigned and use that permission set in Customer community to allow partners login/access.
So the question now is that when Partners are added in Customer community via permission set are they going to get the separate and new login (username+password) for customer community or they can use their existing login credentials (which they use for partner community) to access the customer community?