Merge pull request #3147 from overleaf/jel-sso-email-missing-error

Update default missing SSO email error message

GitOrigin-RevId: 03410a9b5c0f894c236f62148f03cb6243abad7a

services/web/app/src/Features/Errors/Errors.js

@@ -109,7 +109,8 @@ class SAMLSessionDataMissing extends BackwardCompatibleError {
         settings.appName
       }. Please contact your IT department if you have any questions.`
     } else if (!institutionEmail) {
-      this.message = 'Unable to confirm your institution email.'
+      this.message =
+        'Unable to confirm your institutional email address. The institutional identity provider did not provide an email address in the expected attribute. Please contact us if this keeps happening.'
     }
   }
 }