If you are using an Automation to do a mass update to trigger a whole bunch of email Notifications I believe that the system considers this to be a multi record change. As a result your notification is only triggering on a single record change. So the notification will not fire.
However if you did the same mass update using a pipeline then the system will see those individual record changes and fire your individual email notifications to your external recipients.
You can try pushing the button to convert your automation to a pipeline and see if it can be automatically migrated. If not then you will have to build a pipeline from scratch yourself. Note that once you create the pipeline you will have to check to make sure the Pipeline is turned on and make sure that the automation is replacing is turned off.
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Mark Shnier (YQC)
mark.shnier@gmail.com
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