To make changes to an invoice:

• Open the list of invoices using the Documents > Invoices main menu item or click the  button on the toolbar
• Select the invoice you want to edit
• Call the context menu, select the Invoice properties item, or open an invoice by double-clicking on its number, or click the  button on the toolbar
• Make the necessary changes
• Save the document using the Document > Save document main menu item or the  button on the toolbar.

When you make changes to a document, the invoice linked with it changes automatically.

If, when editing the document, the invoice linked with it was open, the changes will be displayed after updating the invoice using the Document > Update contents main menu item or the F5 key.