Question:

  - Using Odoo Enterprise 17.2+e hosted by Odoo.

  - It seems to me this should be available without writing code.

  - I am willing to use one of the built-in apps (Contacts, Email Marketing, etc.)

  - I have build a custom app with a data model "x_student_res".

  - Our business flow includes sending an email to a student at a "Stage is set to" event on "send email".

  - I have created a Automation Rule "join verify" that will send an email using an email template.

  - When I move a student to the "send email" stage,

    I see the Emails an "Outgoing" but there are no to addresses (the "To" field and "To (Partners)").

  - How do I get the "to" field to use the "Email" field in the "x_student_res" model?

  - The "join verify" automation rule is visible in Settings > Technical > Automation > Automation Rules.

  - The "join verify" email template is visible in Settings > Technical > Email > Email Templates;

    The template applies to the "x_student_res" model;

    In Studio, the template properties view allows us to edit the template.

    + Add fields does Existing Fields to not find any of my "x_student_res" fields.

    How to indicate the email "to" is x_student_res.Email ?

PS. I have 8 years experience developing Python.  Linux admin skills.  New to Odoo.