Manually upload periodic vendor inventory and cost via file upload. You can also set expiration dates for inventory, after which point Goflow treats it as depleted until you update.
To avoid the manual file upload altogether, have your vendors drop their inventory files via FTP, and let Goflow auto-update your inventory whenever the update comes in.
When feeding inventory quantities to your stores and channels, Goflow combines your inventory on hand with your vendors' inventory, all based on your inventory allocation rules. See Inventory for more.
Goflow sends designated orders to your Purchase to Order bucket, so you can easily order the necessary products from your vendors. In the PTO screen, live vendor inventory is shown so you only order what they have available. See The PTO Flow for more.