How to stop sending invoices?

To stop sending invoices, you need to cancel one of the orders related to installment manually.

Steps:

1. From your Shopify admin, go to Orders.

2. Click the order that you want to cancel.

3. Click More actions > Cancel order.

4. Select the reason for cancellation from the drop-down menu.

5. If you don't want to notify your customer of the cancellation, then uncheck Send a notification to the customer.

6. Click Cancel order.