Add Custom Field To Order And Record The Goods Delivery Status

Dear Sir/Madam,

I am new to cs-cart development. I want to add a custom field to each order, I want to change its status if I confirm with customer the goods has been delivered.

I want to update the status via API, can I do that?

Do anyone can give me some idea how I can implement it? Any documentation I should read?

Best regards,

Kelvin.

Try to start from checking the Discussion module. It adds extra setting to each order

http://prntscr.com/o5t3gr