User ID and Password Limits

The maximum lengths on user IDs and passwords are different depending on which authentication type you choose.

Table 1. User ID and Password maximum lengths
Vocera authentication	Max Length	Active Directory authentication	Max Length
User ID	50	userPrincipalName	249 for Staff Assignment; 250 for Administration Console and User Console.
User ID	50	sAMAccountName	20
Password	25	Password	127