What are recommended ways of linking DX users to their GitHub accounts?

For organizations using GitHub Enterprise Cloud with a verified domain, the GitHub API provides users’ verified work email addresses through the organizationVerifiedDomainEmails field in the GraphQL User object. This data is used to automatically link users in DX.

In all other scenarios, the GitHub API does not expose users’ work emails. To link identities in these cases, customers should associate GitHub usernames with DX users—either via CSV upload, API, Directory Sync, or manually through the DX UI.

For more information, see How does DX link user identities across systems?.