The Donation Confirmation window appears when your customer's donations have been successfully generated. From this confirmation window, the customer has the option to share on Facebook and/or Twitter also allowing the customer to write a message to garner support from their community. They will also learn they can track their donations on ShoppingGives by creating an account.
The window will show the total donation amount that their purchase generated, from store donations and customer doantions, your store name, and what cause or nonprofit the store donation will support.
When using Product-Level Cause Donations, the window will show the overall store donation amount that the purchase generated, your store name, the causes/nonprofits that the store donation will support, and the donation amount per each cause.
You can disable the Donation Confirmation window on Shopify Admin. However, in order to disable the Donation Confirmation window, you must have Email Confirmation enabled.