We are building an internal app with Checkout UI extensions for our store (non-Plus) so that when the 'additional scripts' feature is removed, we can still show our customers links to access digital downloads they purchased on the 'Thank You' and 'Order Status' pages.
From the documentation I can see that while much of the Checkout Extension UI stuff is for Plus customers, display on those two pages is supported for regular plans. So far so good.
I have my extensions built and they work correctly in a demo store that has the 'Checkout extensibility' feature turned on.
BUT... when I try to use them on my regular store, there's no way to get them to appear.
Just like the sample code (https://shopify.dev/docs/apps/checkout/thank-you-order-status/add-survey?extension=react), we are using purchase.thank-you.block.render and customer-account.order-status.block.render but they do not appear. In the development store, I had to edit those pages in my theme to include them but that's not possible for non-Plus stores - Checkout editing is disabled in the theme editor unless you are on Plus.
How is this supposed to work? FWIW I also couldn't get the sample code at the link above to work on my real store.
