New POS UI Extension target for "Order details" is not appearing

[Jeff-Blake]

I'm using the new extension target `pos.order-details.action.menu-item.render` and had it working great on a development store in preview mode. However, once I deploy the new version to a live app, the menu item does not appear at all. I'm using the latest version of POS on an iPad. 

I know for sure the new version was released as the UI updated on the other smart grid extension target.

The extension: https://partners.shopify.com/669577/apps/1855253/extensions/ui_extension/676921671681

Here are screenshots showing it's working in `shopify app dev` mode.

[Jeff-Blake]

This is the fix:

• Activation in POS Channel Settings: After deploying your app, ensure that the extension is activated in your POS Channel settings.

I recommend to Shopify to have that configurable in the POS App. I never would have thought to enable it from a computer first. The other downside to this is because it has to be manually added on each store, very few merchants will think to do this (without obvious education).