The Multi Source Inventory (MSI) feature is a default feature in Magento which helps to create sources and stocks per website instead of using default sources for all.
LS Retail ehf. currently supports one source per stock in Magento. For more details on Magento MSI configuration click here.
In LS Central, you can configure multiple inventory sourcing locations to a web store. During inventory replication, a consolidated amount of all inventory sources for a web store are calculated and sent to eCommerce. In Magento as part of an LS Central integration, one store can have only one source.
For more details on how to set up sourcing locations in LS Central click here.