I'm involved in "modern" systems for Purchase Order and Invoice transmission between companies - using a standard called "cXML". I say "modern" - it dates back

I'm involved in "modern" systems for Purchase Order and Invoice transmission between companies - using a standard called "cXML". I say "modern" - it dates back to 1999 when we were shouting "XML all the things!". 25 years later companies are just discovering how to use it to stop manual data entry.