Upload an invoice or packing slip, pick the vendor, enter INV# and PO#. The system renames and queues it for matching.
The intake form lives here. Drag a PDF in, pick the vendor from the dropdown (those you create on the Vendors admin page), enter INV# and PO#, and submit. The system stores the file, hashes the bytes (preventing duplicates), and queues it to be matched against its packing slip counterpart.