I'd love to hear about your thoughts on where things in this area are going. We provide an in-house, completely customizable ERP system for wholesale distributors, many of which have started selling directly to consumers via Amazon, Shopify, etc.
Since joining, I've provided direct integrations between these channels and our ERP (it's an old system installed on-premises). We're in the middle of reinventing the company's attempts at e-commerce to a SaaS model. It seems like Stitch Labs was trying to downplay the role of an ERP, but based on our customers it seems like it's still needed.