# "Add customer" POS extension no longer works

The latest [Shopify POS mobile app release (9.16.0 on iOS) very negatively impacted Barcodify's "Add customer" and other Shopify POS app extensions](https://github.com/Shopify/ui-extensions/issues/2299). To work around the issue, I had to release a workaround. In order to use the updated version, **please follow the following steps**:

1. If the "Add customer" Barcodify extension is missing (you may see the "Unknown" tile instead), [add it to the Shopify POS Smart Grid. ](../../getting-started/add-customers-to-the-pos-cart)
2. Force close the Shopify POS app. Examples:
   1. Apple devices - [https://support.apple.com/en-gb/109359](https://support.apple.com/en-gb/109359)
   2. Android devices - [https://support.google.com/android/answer/9079646?hl=en-GB#zippy=%2Cclose-apps](https://support.google.com/android/answer/9079646?hl=en-GB#zippy=%2Cclose-apps)
3. Reopen Shopify POS app.
4. Use the extension as per usual.

Note that the above steps should only be needed once per device, but if you're having problems, please email me.
