Maybe the following two apps might help(p.s. I don't work for them)PickyStory allows you to create customizable tiered discount deals, where you can specify different discounts based on the quantity or combination of products added to the cart. You c...

As an artist based in California, you're correct in collecting sales tax for orders within California. However, for orders outside of California, the requirement to collect sales tax from customers depends on whether you meet the criteria for having ...

Hi @Moz1 , I have previously built a customer portal before as a shopify app, but your use case seems to be a bit more involved than post purchase order edit.To answer your question:1. building custom storefront with customer login: https://shopify.d...

Is there a specific problem that you're trying to solve with Hulk product options? If so, they have support here: https://www.hulkapps.com/pages/support (I'm not from HulkApp) If it's more about giving collaborator access here's an article about it

I found Hulk Form has multi-step forms, but I'm not 100% sure if it does what you want. The example you provided includes both product selection and subscription. It might be a custom solution(Looks pretty nice though)