# BYG

## BYG

- [Getting started with BYG](https://help.postpurchase.deals/byg-1/getting-started-with-byg.md)
- [What are eligibility criteria?](https://help.postpurchase.deals/byg-1/what-are-eligibility-criteria.md): You can choose to show it to all customers or only to those who match the criteria you set up. You can add multiple rules to create more complex eligibility criteria. For example, you can show this fu
- [How to merge orders / Auto editing the initial order](https://help.postpurchase.deals/byg-1/how-to-merge-orders-auto-editing-the-initial-order.md)
- [One click upsell](https://help.postpurchase.deals/byg-1/one-click-upsell.md): One click upsells or Post purchase upsells are sales funnels that let your customer buy an upsell item with just one click
- [Is there any way to edit Thank you page messages in my language?](https://help.postpurchase.deals/byg-1/is-there-any-way-to-edit-thank-you-page-messages-in-my-language.md)


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