What's a good globally unique candidate field that could be used to populate UserID?
When selecting a field to populate UserID in ServiceNow, it's crucial to choose an identifier that is globally unique to ensure that each user can be distinctly identified. The best practices for such identifiers include:
* Employee Number: Typically, an employee number is unique to an individual within an organization and does not change, making it a reliable identifier1.
* Email: An email address is inherently unique as it is tied to an individual and is used for communication, which also makes it a suitable candidate for UserID2.
* SSN (Social Security Number): While SSN is unique to each individual, it's important to note that using SSN as an identifier should be approached with caution due to privacy and security concerns. However, it is unique and could technically be used to populate UserID3.
The Last Name is not a good candidate for UserID because it is not globally unique; many individuals can share the same last name and it can change over time due to personal reasons.
For further details on creating unique identifiers and best practices, ServiceNow provides documentation and guidelines which can be referred to for implementing these practices within the ServiceNow environment.
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