There are two methods to book an invoice or credit note:

Method 1:

1. Go to the "Sales" section and click on "Invoice".
   
   
2. If you see the label "Open" next to the invoice/credit note, it means they haven't been booked yet, and your customer has not received the

Method 2:

1. If you need to book an invoice/credit note, navigate to the corresponding invoice.
   
   
2. In the upper right corner, locate the button labeled "Book Invoice" and click on it.

Note: In the provided invoice image, only a shipment for 10 pieces of the product has been recorded, which will be included in the invoice being booked.

If you have multiple invoices/credit notes that need to be booked simultaneously, follow these steps:

1. In the overview, select the invoices/credit notes you wish to book.
   
   
2. Click on "Action" and then choose "Bulk Update Data".
   
   
3. A box will appear, and within it, select "Status" and then "Book invoices".
   
   
4. By doing so, you can now book several invoices/credit notes at once