Billit has several ways of receiving invoices:
On this page you can find more info on all ways to receive or upload invoices in Billit.
You can upload a document by dragging it into the gray-blue box or by clicking on the 'Upload File' button and selecting a document from your computer. The file will automatically end up in the tab that you have open at the bottom ('To process', 'Approve', or 'Splitter' - see 'Processing Files in Quick Entry').