Moodle to Mailerlite Reenagement Email Automation

I need someone who specialises in Zapier creation to build the right code to retrieve data from Moodle into Mailerlite. The ultimate goal is to build a Renegagement program for students to receive autmated emails: Welcome to your course and then start getting the right reminder email based on their deadline date/course duration days.
I have set up the basics and got AI to help but we seem to have hit a wall with Coplilot keeping repeating the same steps although it looked like we had smashed it - something has happened and it feels like we are not getting anywehere.
I have set up the eamil automation in Mailerlite.
I just need someone to look at the process and code and fix the problems we cannot seem to get past. Then help me test the mailerlite part so we are confident in publishing the process