I would like to ask a conceptual/architectural question about drupal 7 webform. I have different webforms and submissions of that, I would like to add a textfield to the submissions, so it will allow admin user to write a comment about the submission form and it will send an email to user who submitted that form when admin user saves that comment. Along with that feature I want submission form to update itself with this new comment.
I know I will have to create a custom module to alter the form and I don't need all the codes that is going to solve the issue. I just need a pathway or an architecture that is going to lead me to the solution.
Thank you for your time and attention.