One of the most popular email services, Gmail keeps track of all your emails with threaded conversations, tags, and Google-powered search to find any message you need.
Group low-stock items into supplier purchase orders.
Keep stock balances current and supplier orders ready for review. Once you approve an order, the email goes out and its send details stay with the order.
Send approved supplier agreements to managers for signature.
Your agreement reaches the named manager for online signature, and the requester gets a confirmation in the email thread.