Beyond Routing Map (BRM) indicates that the routing algorithm has exhausted all routing possibilities based upon the Routing selections made by the borrower for that specific request.

The request cannot route further and is retired unfilled.

Borrowers may wish to resubmit the request, selecting additional routing choices (e.g., route to All Other Libraries), or de-selecting previous choices (e.g., cells 1-5), or amending the "max cost". Please see the help on resubmitting a retired unfilled request.