# Sandbox: CheckoutApi redirect\_url occasionally gives 'whoops 404'

**URL:** <https://developer.squareup.com/forums/t/sandbox-checkoutapi-redirect-url-occasionally-gives-whoops-404/4295>\
**Category:** Questions\
**Tags:** payments-api\
**Created:** [November 22, 2021, 4:06pm UTC](https://developer.squareup.com/forums/t/sandbox-checkoutapi-redirect-url-occasionally-gives-whoops-404/4295 "2021-11-22T16:06:49Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![vasan](https://avatars.discourse-cdn.com/v4/letter/v/f1d935/32.png) [@vasan](https://developer.squareup.com/forums/u/vasan)\
**Post date:** [November 22, 2021, 4:06pm UTC](https://developer.squareup.com/forums/t/sandbox-checkoutapi-redirect-url-occasionally-gives-whoops-404/4295/1 "2021-11-22T16:06:49Z")

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Sandbox: When using the checkoutApi and Paying for the order, the expected behaviour is a redirect to the specified redirect\_url.  
On occasion (Generally after 8:00 PM pst onwards) this gives a ‘whoops 404’ not found. It seems to clear up sometime late next morning.  
When it gives the 404, manually accessing the redirect\_url, shows that it is accessible.  
Is this sandbox feature temporarily down at this time? How can we figure out what happened? Appreciate all replies  
-Vasan

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**Author:** ![Bryan-Square](https://sea1.discourse-cdn.com/square/forums/user_avatar/developer.squareup.com/bryan-square/32/38_2.png) [@Bryan-Square](https://developer.squareup.com/forums/u/Bryan-Square)\
**Post date:** [November 22, 2021, 8:12pm UTC](https://developer.squareup.com/forums/t/sandbox-checkoutapi-redirect-url-occasionally-gives-whoops-404/4295/2 "2021-11-22T20:12:35Z")

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👋 Do you have an example checkout that you got this error with?

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**Author:** ![vasan](https://avatars.discourse-cdn.com/v4/letter/v/f1d935/32.png) [@vasan](https://developer.squareup.com/forums/u/vasan)\
**Post date:** [November 22, 2021, 9:05pm UTC](https://developer.squareup.com/forums/t/sandbox-checkoutapi-redirect-url-occasionally-gives-whoops-404/4295/3 "2021-11-22T21:05:43Z")

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Thank you for responding. It is not consistent (except that around 8:00PM pst, it starts happening and clears up next day. Will send the next one if it occurs. Thx - Vasan