A single Bud user account should only be linked with up to 50 Bud employers and/or locations.
A single account associated with more than 50 may stop working, showing a 520 error when attempting to login to Bud. The only way to correct this is to remove some of the employers/locations linked to the user account.
In rare cases where a single user does need to be linked to more than 50 employers and/or locations, the individual should have multiple user accounts created, each with fewer than 50 employers and/or locations linked to it.