# Post-purchase popup
The Referral **Post-purchase popup** will appear on the **Thank you** page right after your customer completes a purchase. This seamless integration encourages customers to join your referral program without interrupting their shopping experience.
Here's how it looks like on the Thank you page:
To enable Post-purchase widget, please follow these steps:
## Step 1: Add BLOOP app block to Thank you page
### 1.1. Open Theme Customization
Navigate to **Shopify Admin > Sales channels > Themes > Customize** to access the customization section.
### 1.2. Open Thank you page in Theme Customization
From the page selection dropdown, choose **Checkout and new customer accounts**.
Then, select **Thank you** page.
### 1.3. Add BLOOP Referrals app block to Thank you page
From the left-hand navigation, click **Add block**.
Choose the app block from **BLOOP**, it's named **Referral block.**
Then, click **Save** to complete the process.
The post-purchase popup will now appear on the **Thank You** page after a customer makes a purchase.
## Step 2 (Optional): Customize post-purchase widget content
To customize the popup content, go to **BLOOP Refer and Aff > Referral program > Branding > Post-purchase popup > Customize**.
From there, you can personalize the text as needed.
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For any further questions, feel free to reach out via our in-app live chat or email us at for assistance.
