Matching customer donations is a great way to give back. For more information on setting up customer donations - check out this article.
Setting up Donation Matching
To enable this option
Navigate to the customer-giving page in app and toggle on Allow customers to give with their purchase and Match customer donations
You have the option as a store to set up a monthly giving limit which includes donation matching and other active store giving campaigns
Click Save
Donation Matching Widget
The default tagline for the customer donation widget says "Give to our chosen cause with your purchase and we will match your giving". You can customize the tagline.