Answer
:You should provide the FACET User Manager with a list of the people that will work on your experiment. This should have been in the proposal but often, the cast of characters changes! You need to keep the FACET User Manager up-to-date with who is on the experiment so they know to approve the application from the individuals to become SLAC Users.
The details for this (including a template for the list in an excel spreadsheet format) should be in your invitation letter.