[wenc]

I doubt full automation will ever happen, but I believe "mechanization" is already happening with RPA on workflows that are stable and reproducible.

Commercial AP automation solutions (SAP ARIBA, etc.) exist today but afaik there's no universal standard for electronic invoicing portals, so companies trying to invoice their clients find themselves having to manually enter data on different invoicing portals depending on which software their clients have implemented (there is even a processing fee at times). The burden is borne solely by the invoicing party however.