I would like to understand how FFI works please. I think it stands for Form Factor Indicator.
When and how is this EMV tag used ?
Any pointers will be appreciated.
I'm happy to help answer your questions. Can you please let us know the API that your question related to? To see a list of APIs please go here - https://developer.visa.com/apibrowser
Also, what is it that you are trying to do and what is your use case?