Subscriptions improvements

8) I’m not a fan of this error message shown to managers who try to edit a single subscription order. The message is basically a warning that editing a single order might cause issues.

At the moment, as customers can’t add items to sub orders themselves, so I’m telling shop managers that they can do this if the customers requests by editing the order. But this warning message is not comforting. We need to either say ‘you can’t edit this order’ or ‘you can safely edit this order’. This ambiguity is unpleasant. From what I’ve seen there’s no issues that come from editing an order, but we may need a full sweep of testing to confirm this, and then get rid of this warning message.