Occasionally your BigFix deployment will receive a notice that it has gathered an update to your license.  Then it will ask you to propagate that license to your endpoints.  It notifies you with the following screen:

This private key will require your master password…

Once the tool opens, it will immediately notify you that a propagation is required.  Simply hit YES to this box.

Nothing to do once the tool itself opens, so simply hit OK to close it.

All done.  Return to the console, hit the refresh button in the upper right and the licensing message should be gone.