# Addon Offer Use an Addon block to present an on-checkout one-click upsell offer. Addon order bump offers are a great way to increase average order value on checkouts. Customers can include another low-price point offer with their initial purchase. Sell upgrades, downloads, or additions that complement the rest of the purchase. ## Add an addon To add an addon offer, edit a checkout, click **Add Section** in the editor canvas, and click **Addon**. This will open the **Settings panel** for your new addon block to add content. You can create a custom line item for your addon, or select one of your existing Products or Subscriptions. ### Add an Image You can choose to add an image to create more visual appeal for your addon offers. Use the ‘Image Position’ drop down to choose how you want the image to display: Left, Right, or Top Full Width. ## Add automation On all option-based blocks, you’re able to set up automations to run when a customer selects your addon—for example, add the customer to a course, add a tag in your CRM, or start an email sequence. Just click **Add Automation** in the **Settings panel**. Using a Product or Subscription as your addon? If you have automation set up at the product-level **and** here at the checkout level on the addon, **both** will run. [Learn more about purchase automations →](https://university.spiffy.co/automation/purchase-automations.md)