• You can set up a payment link using your preferred payment gateway like PayPal, PayU etc. For example, you can generate a payment link for PayPal by just creating your link from PayPal.Me.
• You can add a title for the custom payment gateway created with your link and choose a custom image of your liking or as per your payment getaway. The custom payment link is hard coded. Make sure you are adding the correct payment link and other details as it will reflect the same details to your customer.
• You will also need to choose the custom payment method in accepted payment methods of the Companies tab of the application. Make sure that the same is also selected in your Invoice.
• Note: Here payment will not be added automatically to your invoice in the application, you will need to add the payment manually once the amount is received.

- Moon Invoice