If you want to update any details on an invoice that has already been created—for example, adding a customer’s GST number—you can do it from this section.
You’ll also find other fields you can edit using this popup. Just keep in mind that any changes you make here will only apply to the specific invoice you selected.

This popup allows you to update various fields, including:
- Invoice/Supply Date
- Invoice Number
- Order Terms & Conditions
- Customer Billing & Shipping Information
- Order Product Titles
