# Post Purchase Upsell FAQs

<details>

<summary>What is a post purchase upsell?</summary>

A post purchase upsell is an offer that appears to a customer immediately after they complete checkout — before they reach the thank you page. It gives them the option to add a product to their order with a single click, without re-entering payment information.

</details>

<details>

<summary>Do post purchase upsells require a separate app?</summary>

No. Intelligems handles post purchase upsells natively. You do need to enable Intelligems as your Post Purchase page in Shopify settings — but no additional app is required.

</details>

<details>

<summary>Can I test Intelligems' post purchase upsells against another post purchase upsell app?</summary>

No. Shopify requires you to enable one app as your Post Purchase page in Shopify settings, so you cannot test two post purchase upsell apps against each other.

</details>

<details>

<summary>Can I show different upsells to different customer segments?</summary>

Yes. You can configure multiple post purchase upsell personalizations with targeting rules to control which visitors see which upsell offers — by things like the products in their order, cart value, or audience segment.

</details>

<details>

<summary>What happens if a customer declines the upsell?</summary>

They're taken directly to the thank you page. Declining has no impact on their original order.

</details>

<details>

<summary>What happens if a customer accepts the upsell?</summary>

The upsell product is added to their existing order. They don't need to go through checkout again — no additional payment step required.

</details>

<details>

<summary>Can I test multiple post purchase upsells against each other?</summary>

Yes, we recommend doing that! You can test essentially everything — a few recommendations include:

1. Showing a post purchase upsell vs. not showing one
2. Testing which products are shown
3. Testing a discount vs. no discount, and different discount levels
4. Testing the content on the page, such as the messaging in the heading and add to cart buttons

</details>

<details>

<summary>My post purchase upsell isn't showing up. What should I check?</summary>

A few common causes:

* The Intelligems JavaScript isn't installed in your live theme — see more [here](https://docs.intelligems.io/getting-started/adding-intelligems-script-to-your-theme)
* Intelligems isn't set as the Post Purchase page in your Shopify settings — see more [here](https://docs.intelligems.io/how-to-set-up-a-post-purchase-upsell-personalization-or-test#step-5-enable-intelligems-in-shopify)
* The products in the test order don't meet the targeting criteria for your offer
* Your test isn't active yet and you are not previewing it

If you've checked all of the above and it's still not appearing, reach out to support.

</details>


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