But sending the transaction is just ONE part of the ISO. There are a lot of other different messages that are part of the standard: https://www.iso20022.org/iso-20022-message-definitions
Great point hansoolo, ISO20022 has a huge namespace and can do all kinds of things. My current focus on making transaction banking namespaces more accessible (think pain.001 002 and 008) aswell as CAMT files
I accidently also stumbled across the different einvoicing types that exist. What a space to explore :)