> For the complete documentation index, see [llms.txt](https://docs.goaffpro.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.goaffpro.com/affiliate-portal-customization/toolbars/setup-checkout-blocker.md). # Setup Checkout Blocker **GoAffPro** provides you with the option to set up the checkout blocker in your store. To set up the checkout blocker in your store, go to the **Toolbars** section in the **Look and Feel** tab of the GoAffPro admin panel.

Look and Feel > Toolbars

Here, go to the Checkout blocker section.

Checkout blocker

Now, enable the toggle.

Enable the toggle

Next, click on **Configure selectors**.

Click on Configure selectors

This will open up the Checkout Button to block window.

Checkout Button to block

Here, click on **+ Add selector**.

Click on + Add selector

After this, you can set the CSS selector and action. Finally, click on **Submit**.

Set the CSS selector & action > Click on Submit

This will prevent customers from checking out unless they use the affiliate's referral link to visit your store.
{% embed url="" %} Setup Checkout Blocker {% endembed %}