Automate Purchase Order Approvals

I’m ready to remove the manual steps from our purchase-order workflow. My goal is a module—web-based or API driven—that takes a PO request, instantly generates the document, and routes it for sign-off without human intervention... (Budget: $250 - $750 USD, Jobs: API Development, Automation, Cloud Computing, Database Management, RESTful API, Security, Web Application, Web Development)