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!).
Assign follow-ups for bills awaiting approval before payment.
Get clear follow-up tasks for bills nearing payment, so your payables person knows which approvals to chase.
Add receipt quantity gaps to supplier bill approval tasks.
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.