# Purchase Order - Unknown 22 Error

**URL:** <https://community.shiphero.com/t/purchase-order-unknown-22-error/686>\
**Category:** GraphQL API\
**Created:** [August 24, 2020, 2:08pm UTC](https://community.shiphero.com/t/purchase-order-unknown-22-error/686 "2020-08-24T14:08:42Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![tomasw](https://sea2.discourse-cdn.com/flex020/user_avatar/community.shiphero.com/tomasw/32/248_2.png) [@tomasw](https://community.shiphero.com/u/tomasw)\
**Post date:** [August 25, 2020, 10:40pm UTC](https://community.shiphero.com/t/purchase-order-unknown-22-error/686/5 "2020-08-25T22:40:42Z")

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HI @rubix3!  
It might be related to unexisting SKUs on the PO.

There seem to be some products, for example SKU: HGLV105PUR\_XL that don’t exist on the warehouse.

Is it a common practice to have purchase orders with unexisting SKUs?  
I will log a request to improve the error message or support this cases in the meantime, but want to get to the root cause

In the meantime, creating those products in the warehouse should solve the issue  
Thanks in advance!  
Tom

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