Are you using the manual CSV Upload Product inventory update or the the automated inventory update via an FTP directory? Is your inventory failing to update?
This is caused by extra spaces either on the inventory file or in the database. The skus in the inventory file and the database need to match exactly.
Log into your server and find the "logicbroker_vendor_inventory" database table. Match the skus found here to the ones in the inventory file.
Note: even if a space exists in the database table it may not show up in the Product Catalog of your Magento Admin Panel. On the front-end of the admin panel the spaces are trimmed and removed from the display. Copying skus from the front-end may not have the same about of extra spaces as those in the database table.