I just started at my second M2 store as ecommerce manager, and I’ve found that our site is in Multi Store mode. I asked my in-house developer if he knew we were in this mode and he said no and didn’t really know anything about the difference.
In my last store, we discovered we were in Multi Store mode about a year after we upgraded from M1 when I stumbled upon the configuration in Stores > Config > General > General > Single-Store Mode: No. It created problems for us related to the import/export of product data over time, which is why I’m concerned now at the new store where I want to begin doing imports to update large swaths of products.
Does an out of the box Magento 2 install set up with multi-store mode?