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good day everyone i had already released a video by 3 authorization processing which covers overview on how authorization processing works in this video i am going to delve a little bit more deeper on how traditional payment card authorization works including a bit of iso 8583 in this video im going to introduce you to the protocol and the message formats used and the technical flow of authorizations from the financial institutions to schemes and anatomy of an iso 8583 message before we jump into the details of how authorization processing works lets first try to define what is a protocol and what is a message format so when two people want to communicate to each other they can write a letter to each other or make a telephone call or chat by a messenger so this method of communication is called as protocol so one of these communication methods is called as a protocol for that particular communication and when they want to communicate to each other they should communicate in a languag
