I'm new to Shopify and I'm still trying to wrap my head around some of its features, so I'm hoping someone with experience can help point me in the right direction.
I'm working with someone who already has a Shopify store, but they want to be able to sell their products in other people's Shopify stores. Is this common, or even possible? From the look at the custom app marketplace, it seems like some of the apps in there must be doing something like this already -- it looks like apps let Shopify store-owners sell products from non-Shopify sites. As long the original site has the necessary API endpoints, this seems like it would be possible. However, if the original site is a Shopify site, are there any shortcuts? Am I off my rocker?