https://www.ebaportal.eu/_Download/What's%20News/2011/ISO20022_Financial_Invoice_Factsheet.pdf
The good thing with standards is - as many say - that there are so many of them. When it comes to e-invoicing we now have one which is global, highly capable, ready for use and open to all (in no way dominated by for example the banking sector - even if
it is using ISO20022), strongly supported by a global organization (SWIFT) and having all the needed procedures in place for developing it further when needed.
What could be an excuse for not moving on now?