# Missing charges for Alipay on Sources

If you have integrated Alipay using the [Sources API](https://stripe.com/docs/sources/alipay), you are [required to use webhooks](https://stripe.com/docs/sources/best-practices#the-required-use-of-webhooks) to determine when a source becomes chargeable in order to create a charge. If no charge request was made towards the chargeable source, your customer may think that the payment was made, when the payment did not actually go through. You can view [uncharged sources](https://dashboard.stripe.com/uncharged_sources) and [cancelled sources](https://dashboard.stripe.com/search?query=status%3Acanceled) in your Stripe dashboard.