Payment difference

We don't have this functionality in Dexxter yet, so thank you very much for your question! We will add it to our roadmap.

But to help you out in the meantime, you could solve this as follows to reflect the extra income in your bank account in your accounts:</

Create a sales invoice for that customer for the amount of the payment difference. You don't have to send it to the customer, it's just to include the extra income in your accounts for the amount of the payment difference.