Error Message: Failed API level ACL ValidationIssue > When user tries to send an email from a communication plan via the Major Incident Workbench, a wait screen launches and never finishes loading. The XML Error message appears as below: <response><error><detail>Failed API level ACL Validation</detail><message>User Not Authorized</message></error><status>failure</status></response> ReleaseMadrid Patch 7Cause> User has multiple roles snc_external and snc_internal.Resolution> User should have just one role i.e., snc_internal, therefore, removing the snc_external will resolve the issue.