Instead of setting an image to use for the pin button, you can also set a specific Repin ID instead:
After clicking on the “Use Repin ID” button you’ll be able to enter the ID:
The ID for a specific pin can be found in the URL on Pinterest. For example, in the screenshot above we’re using the ID of our “Amazing Vegetable Pizza” recipe pin:
By using a Repin ID we can make the sure the pin counts towards a specific, already existing pin on Pinterest.