How to send your invoice payment receipt by one click?

Once you created a new sales invoice and finished payment, you can send your receipt by just one click.

Steps:

1. Click into the paid invoice 

2. You can see a "Insert Payment" button at your left side.

3. Click in and you will see the image as below

4. In "Payment Received", there's two blue button. Click the "Envelope" button and the official receipt will be sent to your customer.