> For the complete documentation index, see [llms.txt](https://galmis.gitbook.io/barcodify-customer-selector/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://galmis.gitbook.io/barcodify-customer-selector/troubleshooting/known-issues-and-workarounds/something-went-wrong.-please-check-your-cart-or-try-again..md).

# Something went wrong. Please check your cart or try again.

The issue can be seen on iPads and iPhones using Shopify POS version 9.16.0 or later. It appears to be harmless, and the app extension should function as expected. If it doesn't please check this [quick guide.](/barcodify-customer-selector/troubleshooting/known-issues-and-workarounds/add-customer-pos-extension-no-longer-works.md)