System for Cross-domain Identity Management: Core Schema
Customize user provisioning attribute-mappings¶
Custom extension attribute to a SCIM compliant application¶
User Principal Name¶
A UPN must be unique among all security principal objects within a directory forest. This means the prefix of a UPN can be reused, just not with the same suffix.
The userPrincipalName attribute is the logon name for the user. The attribute consists of a user principal name (UPN), which is the most common logon name for Windows users. Users typically use their UPN to log on to a domain. This attribute is an indexed string that is single-valued.
A UPN consists of a UPN prefix (the user account name) and a UPN suffix (a DNS domain name). The prefix is joined with the suffix using the “@” symbol. For example, “someone@ example.com”.