Unable to perform the requested operation because this would violate the maximum number of licensed Metadata Manager users: [<number of users]
The license object assigned to a Metadata Manager Service determines the number of users you can assign to a Metadata Manager Service. The Metadata Manager Service already has the maximum numbers of users assigned to it.
Remove existing users from the Metadata Manager Service before you assign other users to the service. To increase the number of users you can assign to the Metadata Manager Service, get a new license file from Informatica Global Customer Support.