Problem
You are receiving a PO Email Undelivered Alert in ServiceTitan, which means that your emails are not being delivered to your customers.
Solution
Check the job audit trail to see if the email was sent.
If the email was sent, contact Technical Support to check if the email bounced and remove your email from the suppression list.
Go through the steps of sending purchase orders to ensure that the issue has been resolved.
If the issue persists, contact Technical Support for further assistance.