Queries for the AppServiceAuditLogs table
For information on using these queries in the Azure portal, see Log Analytics tutorial. For the REST API, see Query.
Audit Logs relating to unexpected users
List Audit Logs for users who logged in that aren't a listed user.
// To create an alert for this query, click '+ New alert rule'
AppServiceAuditLogs
| where UserDisplayName != "user@company.com"