With Moon Invoice, you can edit the payment receipt number easily. 

Follow the steps below:

1. Open the Moon Invoice application on your device, or tap this link.

2. Navigate to Sales → Payment Received.

3. Click on the payment entry for which you want to edit the receipt number.

4. Tap on the Edit icon, update the payment receipt number as needed, and click Save.

                                                                                                                                              - Moon Invoice