What are the ways in which I can upload my receipts? Can I upload expense receipts in any language? Can I attach multiple receipts to an expense? Can I upload receipts in any format? What is auto scan? How do I scan my receipts? When does auto scanning fail? Why was my receipt not auto-categorized? Can I turn off Auto-scan and record expenses from receipts manually? How do I upload multiple receipts at the same time? How many receipts can I upload at a time? How do I convert a receipt into an expense? How do I delete a receipt?