I am developing an integration to a clients Magento 2.3 store that they upgraded from some prior version. Under Stores menu, there is no Inventory section (Sources, Stocks).
In testing some calls (Post and Get) to /V1/inventory/source-items [reference], I get the error:
"Request does not match any route."
(I have a another fresh install of 2.3 and the same REST api calls work)
I'm guessing this is because of the fact this isn't a fresh install and an upgraded instance.
1.) do we need to install MSI (Multi-Source Inventory) for this to work OR
2.) is there an API end point for stores that don't use MSI to get and update inventory?
