hello i am a iphone developer, i am integrating authorize.net payment system for my application where i will accept payments from my users which are members of my app. right now i am facing problem that i had to enable device manually before make a payment. in live application it is quite impossible to enable device manually. can any one help me for that? is there any option for enable all device automatically? and any one can explain me differance between customer facing api n merchant facing api? (send link of demo for customer facing api also)
thanks for help.....
