I have a custom entity "Request" that has text field with type email to be used for an internal requester's email address. Internal requester's doesn't have access to CRM. We want to send them an email acknowledgement that we have created a request on their behalf. After that, our team sends emails from their own Outlook when interacting with them.
When we create a workflow that includes sending an email, the email field is not showing up as a choice to be placed in the "To" field. The only choices are User entity related fields and Contact related fields. We are managing external vendor contacts in the Contact entity.
How would I get this to work?