For some reason the app adds a partial payment by itself?

When you mentioned adding a partial payment, did you mean a payment has already been applied to an open invoice? If so, any credit or adjustment note created for a customer will automatically apply to their open invoices once the Automatically apply credits setting is enabled. You can turn it off if you prefer manual management by signing in on a web browser.

Here’s how:

1. Click the Gear icon and select Account and settings.
2. Go to the Advanced tab, then click the Automation section to expand it.
3. Find the Automatically apply credits and toggle the switch to turn it off.
4. Select Save to lock in your changes.

If you want to remove the applied credit from the invoice, simply delete the linked payment. Here's how:

1. From All apps, go to Sales & Get Paid and choose Invoices.
2. Find and click the specific invoice, then select the linked payment from the Invoice activity history.
3. On the Receive Payment page, click More and choose Delete.

Let us know if you meant something else or if you have additional concerns. We're here to help.