Sending and receiving payments involves disparate exchange protocols and messaging formats. Even XML ISO 20022 is not a global standard. Each country, and each bank, can have its own requirements, and that is not likely to change in the foreseeable future.
This directly impacts the financial data that you need to send and receive from your ERP or TMS. Adjusting formats within each backend treasury system to correspond to individual bank specifications is resource- and laborintensive, even assuming you have the IT staff and necessary expertise. This is why many finance departments still have treasury analysts spending hours of time every week doing manual work — which also isn’t a scalable solution.