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# How to upsell to subscriptions on the post-purchase page


### Overview
Upselling subscriptions immediately after a customer completes a purchase can enhance customer retention and boost recurring revenue. While Shopify imposes certain limitations on post-purchase subscription offers, UpsellPlus provides a workaround to effectively convert one-time purchasers into subscribers.

###### Understanding Shopify's Limitations
Shopify restricts certain post-purchase subscription modifications:

* **Existing Subscription Orders**: You cannot modify or add subscriptions to orders that already contain subscription products.
* **Conversion Restrictions**: Directly converting a one-time purchase into a subscription order post-purchase is not permitted.

For a detailed overview of these limitations, refer to [Shopify's documentation in our article about this](https://help.upsellplus.com/en/article/selling-subscriptions-on-the-post-purchase-page-limitations-wyh5nj/).

###### Workaround to Upsell Subscriptions Post-Purchase
To navigate these restrictions, you can implement the following process:

1. **Initial One-Time Purchase**: The customer completes a purchase of a one-time product from your store.
2. **Post-Purchase Subscription Offer**: Immediately after the purchase, present a post-purchase offer inviting the customer to upgrade to a subscription.
3. **Subscription Initiation with Delay**: Upon acceptance, fulfill and ship the original one-time product. Schedule the subscription to commence after a delay equivalent to one subscription cycle.

This approach ensures a seamless experience, transitioning one-time buyers into subscribers without violating Shopify's post-purchase policies.

###### Implementing the Workaround with Recharge
If you utilize Recharge for subscription management, you can automate the delayed start of the subscription:

* **API Integration**: Use Recharge's API to adjust the subscription's start date post-purchase.
* **Delay Configuration**: Set the subscription to begin after a specified period, aligning with your subscription cycle.

For detailed instructions on delaying charge regeneration, consult [Recharge's API documentation](https://docs.getrecharge.com/docs/subscriptions#delay-a-charge-regeneration).

**Key Considerations**
* **Customer Communication**: Clearly inform customers about the subscription start date to manage expectations.
* **Inventory Management**: Ensure that inventory levels can support the initiation of subscriptions after the delay period.
* **Automation**: Leverage subscription management tools like Recharge to streamline the process and reduce manual intervention.

**Related Articles**
* [Selling Subscriptions on the Post-Purchase Page: Limitations](https://help.upsellplus.com/en/article/selling-subscriptions-on-the-post-purchase-page-limitations-wyh5nj/)
* [How to Upsell to a Subscription in Checkout and Cart](https://help.upsellplus.com/en/article/how-to-upsell-to-a-subscription-in-checkout-and-cart-htbhu8/)