we ended up using WHOLESALE CLUB from Pixel Union. great product, great service...
it's fairly sad that Shopify does not support and continue to develop the lower levels of their plans like one would expect. these are some basics along with some other bugs that have not been addressed...
This is an essential feature for a lot of merchants and honestly, it isn't so hard to implement as Shopify already offers discounts based on segmentation.
Have you had made any progress here?
It is still not possible to apply an automatic discount code to customer groups by tag, unfortunately. I am continuing to submit feedback to our development team about this feature request. As mentioned by others in this thread, apps such as SELLY and Automatic Discount apps are worth looking into if you're needing this functionality.
Victor | Shopify Social Care