Hello everyone, I want to change the line items of an order, and after hours of searching, I found several apps that could do that. However, I checked admin API, store API etc, all I found is that only notes/ address/ etc can be changed, but not line items (and not quantity/price). So I just wonder how did those apps can change shopify order? Is there anyway I can develop a private app so we can edit line items of orders? Thanks very much.
