trying to send emails to a specific project role when a certain field is updated. When I try to send it to just the project role, it fails and says it's due to the value in the "to" field missing
I do not believe you can do that yet as there is an item in the Code Barrel backlog to add it:
As a work-around you could add a custom field (user list) for your developer people, populate the field on issue creation, and use that field as the "To" for sending emails.
Hey Everyone! Simeon from the Automation team here. I'm delighted to share some new features and improvements that we are shipping to Jira automation (Cloud only). Firstly, @Sam Harding ...
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