Managing millions of tasks, Todoist is an online task management app and todo list. It has Web, iPhone, Android, Chrome, Firefox, Outlook flavors (and more!).
Open approval tasks for merchandise supplier bills coming due.
Get clear follow-up tasks for bills nearing payment, so your payables person knows which approvals to chase.
Flag merchandise invoices for quantities beyond recorded receipts.
Your bill reviewer sees the quantity gap or missing receipt ID on the task, so they can decide what to do with the supplier bill.