In the sales form content how do i add a order number column?

I know how you can add an order number on your sales form, reservations.

Adding an Order Number in the content section of your sales for isn't possible in QuickBooks Online (QBO). However, you can utilize the custom field to add an order number. 

Here's how:
 

1. Go to the Gear icon, then click Custom fields.
2. Hit the Add field button.
3. Enter the word Order Number in the Name field.
4. Select the All Sales forms, then click Save.

For your reference, here's what it looks like:

Furthermore, if you want to enhance the appearance and layout of your sales form, check out this article: Customise invoices, quotes, and sales receipts in QuickBooks Online.

Keep us posted by leaving a comment below if you need additional assistance in customizing your sales forms. We're always ready to assist you in achieving your goal.