For non-Salesforce connectors, any job failures that occur before the execution is started do not follow the standard failure notifications that you may have configured for your job.
Gainsight’s Reason:
The notifications will only trigger once the source execution has begun. However, in our case, it failed before the execution started, as shown in the screenshot.
If we're using an SFDC connection as the source, we'll receive a failure notification even if it fails during the extract process. But for other connections like Zendesk, we won't receive a failure notification unless an Extract action has occurred.
If the job fails before the execution starts that is still a noteworthy failure that should be communicated. We configure our system to have failure notifications so that we do not have to manually check that everything is working properly every time.