Let me answer your second question - the recent implementation of SWIFT gpi (which is not being widely used by most Russian institutions so not relevant to the

Let me answer your second question - the recent implementation of SWIFT gpi (which is not being widely used by most Russian institutions so not relevant to the sanctions talk) is designed to increase the power of the SWIFT system, better automate payments and ease interaction between SWIFT and clearing houses/payment systems. So in that sense it would be far better than coordinating over a non-payments specific communication method. Regarding your first question - ISO20022 currently requires a parser to convert ISO20022 information into a MT message. This is automated in SWIFT gpi and compatible softwares.