Customize your checkout with extra fields
Chec's checkouts only capture the relevant information from customers but if you need to gather more information from your customers, it is easy to do so.
Go to Setup > Collected data to set your desired global fields
When adding a product, in the Options tab of the product builder you can add your own custom fields as well as enabling the required collect fields.
Only ask your customers what is essential. Asking for too much information can cause shopping cart abandonment from customers.