Google Sheets Purchase Order AppScript Debug

Help me Debug my program I am making.
I have a document that explains my project
I'm looking for an AppScript to streamline my purchase order process on Google Sheets. The script should allow me to generate purchase orders and track order status.

Requirements:
- Fields on the purchase order:
- Item name and quantity
- Price and total cost
- Vendor name only
- Input Method: Manual entry in Google Sheets

Ideal skills and experience:
- Proficiency in Google Apps Script
- Experience with Google Sheets
- Ability to create scripts that can generate and track documents

Please provide examples of similar work done and an estimated timeline.