Open your Lightspeed account. Here you click the 'Sales' tab.
Click "Sale history".
3. Enter a period to filter your invoices and click the invoice for which you would like to create a credit note.
4. At the right side of the screen the details of the invoice will appear. Click the blue button that says "Refund or exchange".
5. Next, you can click "Refund" next to the items you would like to create a credit note for.
6. Finally, click on the blue MDware button
7. Now you will be redirected to the MDware Cockpit and this is the same as when you make an invoice