May 18, 2026

Enabling user attributes, e.g. “email” in the JWT in Entra External ID (EEID)

There are always questions about this on Q&A, especially regarding email, so I put together this checklist. User / edit properties / all — check email address actually exists […]
April 29, 2026

On Entra External ID (EEID) custom extensions and event listeners — Introduction

Listener I have a series of posts on this here. There is a wealth of data in the metadata endpoint: GET https://graph.microsoft.com/beta/$metadata Trawling through this, we find […]
March 17, 2026

Entra External ID (EEID) AADSTS1100001 error with token issuance custom authentication extensions

American merchant token coin via Wikimedia The actual error is: AADSTS1100001: Non-retryable error has occurred. Underlying error code: 1003002 I was testing logging in from EEID to […]