Impact Items can be unlimited, or have a set quantity. Most times, having a set quantity can be useful if you have an online store (like you're selling 25 t-shirts for $20 apiece), or you're running a 'fund-a-need' style campaign. Adding a quantity will allow the platform to stop selling the item automatically when the limit is reached! Here's how to adjust the quantity for an Impact Item:
From your dashboard, head to your Impact Giving campaign in the Donation Campaigns section, and click Manage.
Click on Impact Items in the left-hand menu.
Now, click on the item you'd like to edit.
To make the quantity unlimited, leave the Quantity blank. To adjust the quantity to a specific number, type that number in the Quantity field. To sell an impact item you only have one of, set the item's quantity to 1!
Now, the new quantity remaining will be updated for your donors.
Please note: The item will still be displayed on your donor-facing Impact Giving page, but donors will no longer be able to donate/purchase it. To completely hide the item from future donors, you can delete the item in the Impact Items page.