Administrators and users with the 'Manage User' permission is required to reactivate a User that has been deactivated.
Note: Ensure the org has enough appropriate licenses available in your Org before reactivating a User. If the Org does not have enough licenses, then the user reactivation will fail.
To check the available licenses, go to:
Classic: Setup | Company Profile | Company Information
Lightning: Gear icon | Setup | Company Settings | Company Information
Steps to Reactivate a User
1. Navigate to the Users portion of setup:
Classic: Setup | Manage Users | Users
Lightning: Gear icon | Setup | Administration | Users | Users
2. Look for the name of the User to reactivate.
3. Click Edit beside the name of the User.
4. Select the 'active checkbox.'
5. Click Save.
Considerations for Editing Users
User Licenses
Trailblazer Community - Cannot Activate a Disabled Portal User
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