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.
Keep incomplete requests waiting and alert requesters.
Your requesters know what to add to their original purchase forms, while the approval waits for a reviewer.
Send approved purchase orders to suppliers and keep a sent copy.
Your suppliers get the purchase orders they need to start work, and your team has a sent copy to track what went out.