You can add labels to your invoices to track how each sale is made or for other purposes. Here's how to do it:

There are two ways to add labels--

1. When you are making an invoice, you can add labels in the highlighted area.

2. On the invoice main page, you can also click on the three-dot icon and add labels from there.

If you want to create a new label, you can type the label and you will be prompted to create a new label.

After adding the labels, you can filter by them via the "Labels" filter on your invoice main page.