i am using Authorize.net with asp.net.i had already setup a new merchant gateway and got login_ID,Tran_Key,password from Authorize.net for testing . i had used Advanced Integration Method (AIM) in my application. As result , i had got the error message :------
3|1|87|(TESTMODE) Transactions of this market type cannot be processed on this system.|000000|P|0|||1.00|CC|auth_capture||||||||||||||||||||||||||396000871FC199797CF31CEFB44D20EE||||||||||||||||||||||||||||||

i am using this all in testing mode... and testing url-
if anybody has any idea about the solution of this prob!

plz help me out ....

Waiting for replies.....

Thanks for help.