https://community.databricks.com/t5/administration-architecture/getting-500-error-on-uc-external-http-connection-to-entra-with/m-p/155962#M5216 <P>I am getting 500 Internal Server Error with Unity Catalog external HTTP connection to Entra (for accessing Microsoft Graph API):</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="garyng_0-1777659141734.png" style="width: 400px;"><img src="https://community.databricks.com/t5/image/serverpage/image-id/26566i8EF90EE5B71F830B/image-size/medium?v=v2&amp;px=400" role="button" title="garyng_0-1777659141734.png" alt="garyng_0-1777659141734.png" /></span></P><P>There isn't any special setup with my Entra app, just the default one with my workspace url as the redirect url:</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="garyng_1-1777659403816.png" style="width: 400px;"><img src="https://community.databricks.com/t5/image/serverpage/image-id/26567i53648765681153A3/image-size/medium?v=v2&amp;px=400" role="button" title="garyng_1-1777659403816.png" alt="garyng_1-1777659403816.png" /></span></P><P>Microsoft Graph API should support the OAuth spec so I am not really sure what am I missing.</P><LI-CODE lang="markup">request_id of createUserMappedCredential of the failing events from system.access.audit: e8c76083-d512-4326-893d-7efebe8b0d35 88035b80-f790-402b-ba09-a380ae63174f 17382d3e-bcb4-4779-9ca8-6006295260f1 817d7268-38e0-4473-8720-647818729e7f 965f40bd-03f0-4c68-b1d4-e1b835e6cad1 85d2a547-8875-449d-8a64-1e9578156993</LI-CODE><P>Please help to take a look, thank you!</P> Fri, 01 May 2026 18:19:03 GMT garyng 2026-05-01T18:19:03Z https://community.databricks.com/t5/administration-architecture/getting-500-error-on-uc-external-http-connection-to-entra-with/m-p/155962#M5216 <P>I am getting 500 Internal Server Error with Unity Catalog external HTTP connection to Entra (for accessing Microsoft Graph API):</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="garyng_0-1777659141734.png" style="width: 400px;"><img src="https://community.databricks.com/t5/image/serverpage/image-id/26566i8EF90EE5B71F830B/image-size/medium?v=v2&amp;px=400" role="button" title="garyng_0-1777659141734.png" alt="garyng_0-1777659141734.png" /></span></P><P>There isn't any special setup with my Entra app, just the default one with my workspace url as the redirect url:</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="garyng_1-1777659403816.png" style="width: 400px;"><img src="https://community.databricks.com/t5/image/serverpage/image-id/26567i53648765681153A3/image-size/medium?v=v2&amp;px=400" role="button" title="garyng_1-1777659403816.png" alt="garyng_1-1777659403816.png" /></span></P><P>Microsoft Graph API should support the OAuth spec so I am not really sure what am I missing.</P><LI-CODE lang="markup">request_id of createUserMappedCredential of the failing events from system.access.audit: e8c76083-d512-4326-893d-7efebe8b0d35 88035b80-f790-402b-ba09-a380ae63174f 17382d3e-bcb4-4779-9ca8-6006295260f1 817d7268-38e0-4473-8720-647818729e7f 965f40bd-03f0-4c68-b1d4-e1b835e6cad1 85d2a547-8875-449d-8a64-1e9578156993</LI-CODE><P>Please help to take a look, thank you!</P> Fri, 01 May 2026 18:19:03 GMT https://community.databricks.com/t5/administration-architecture/getting-500-error-on-uc-external-http-connection-to-entra-with/m-p/155962#M5216 garyng 2026-05-01T18:19:03Z