I opened up a ticket regarding this issue, and below is what the representative told me:
"If I understand correctly, you’re trying to send an email to the form submitter when an approval task is completed, but the “Task Creator Email” variable isn’t returning a valid value. From what you’ve described, this is likely because in Asana, the “Task Creator” typically refers to the person who created the form itself, not the person submitting it. That’s why the variable is showing “[No value].”
Here’s how you can resolve this and achieve your goal:
- Add an Email Field to Your Form:
- Include a required question in your form to capture the submitter’s email address. This ensures you have the necessary contact details.
- Use a Custom Field for Submitter Emails:
- Create a custom text field in your project, e.g., “Submitter Email.”
- Map the form’s email field to this custom field so that every task automatically includes the submitter’s email address.
- Set Up a Rule to Send Emails:
- Trigger: “Task marked as approved.”
- Action: “Send Email.”
- In the “To” field, select the custom field “Submitter Email.”"
It still doesn’t make sense that there’s not a native way to reference the email address from the built in email field in a form from a rule. But doing as described above, deleting that field from the form and adding a new custom field called Email did in fact work to successfully send the email.