I've attached the 1st and 2nd generate AC request and response. The AIP of the test card indicate that External Authentication is not required so I assume the Issuer Authentication Data should be included in second generate AC. However the card tends to answer the response with AAC in second generate and indicating that issuer authentication was failed. In our testing, the transaction approved by host (returned with an Issuer Authentication Code and Authorization Code (00 - Approved)). Our solution is online-only terminal which all the transactions shall go online and approved by host. When running the M-TIP06 Test 02, I am getting an error of Issuer Authentication Failed. I'm running the Mastercard M-TIP tests that apply to our solution, and I'm seeing some unexpected results. I am just new in EMV payment industry and currently doing some EMV payment development, and hoping someone can shed some light on what I'm seeing.
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