$PMRepositoryUserName returns the name of the repository user that runs the session. Use $PMRepositoryUserName with any function that accepts string datatypes. $PMRepositoryUserName returns the repository user name as a string value.
Use $PMRepositoryUserName in a mapping, a mapplet, workflow links, or in workflow tasks such as Assignment and Decision tasks. You can also use $PMRepositoryUserName in input fields that accept mapping or workflow variables.