Cannot add or manage a user with user ID <UserID>. User IDs must be unique within a deployment. This user ID is already in use in RSA Authentication Manager
Originally Published: 2014-08-01
Article Number
Applies To
RSA Product/Service Type: Authentication Manager
RSA Version/Condition: 8.x
Issue
However, if duplicate user IDs are intentional and you are getting the following error, you can resolve your issue using the solution below.
Cannot add or manage a user with user ID <UserID>. User IDs must be unique within a deployment. This user ID is already in use." while taking any actions such as assigning tokens, adding groups, permissions etc to a user id with duplicate userid in realm,
Resolution
- Log in to the Security Console.
- Click Setup > System Settings.
- Click Security Console Authentication Methods under Console and Session Settings.
- Check the option for Non-Unique User IDs to allow identical User IDs may exist in more than one identity source/
- Click Save.
Related Articles
RSA Authentication Manager – Unable to Add or Manage Users with Error “The specified ID is already in use” 5.16KNumber of Views Duplicate User ID error when running All Users report in RSA Authentication Manager 8.x 1.65KNumber of Views AM 8.1: Cannot add or manage a user with user ID <UserID>. User IDs must be unique within a deployment. This user ID is al… 299Number of Views Error Unable to resolve user by login ID and/or alias, or authenticator not assigned to user when attempting to authentica… 2.12KNumber of Views Download RSA SecurID Access Cloud User Event audit logs using Cloud Administration REST API CLU 1.88KNumber of Views
Trending Articles
Downloading RSA Authentication Manager license files or RSA Software token seed records RSA MFA Agent 2.3.6 for Microsoft Windows Installation and Administration Guide Quick Setup Guide - Passwordless Authentication in Windows MFA Agent for Active Directory Mandatory Certificate Upgrade Required by 6th October 2025 for RSA MFA Agent for PAM, RSA MFA Agent for Apache, and Third … RSA Authentication Manager 8.9 Release Notes (January 2026)
Don't see what you're looking for?