# "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. ](/barcodify-customer-selector/getting-started/add-customers-to-the-pos-cart.md)
2. Force close the Shopify POS app. Examples:
   1. Apple devices - <https://support.apple.com/en-gb/109359>
   2. Android devices - <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.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://galmis.gitbook.io/barcodify-customer-selector/troubleshooting/known-issues-and-workarounds/add-customer-pos-extension-no-longer-works.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.