authorize.net - 在Sandbox帐户中进行交易

I have a Sandbox Account and I made test transactions but all the payments failed. I do not have Live Account and cannot test in Test mode. Is there any other ways to test transactions?

Googled for this and came up with this url:

If you are receiving error E00009, “The payment gateway account is in Test Mode. The request cannot be processed” while requesting the ARB or CIM API, then your account is in Test Mode. Because the ARB and CIM APIs do not function in Test Mode, you need to disable Test Mode through the Merchant Interface.

To do this, log into your account, click Settings under Account in the left-side menu, then click Test Mode under the General Security Settings section. From here, click Turn Test OFF to put your account in Live Mode. Once you’ve done this, you should no longer receive error E00009 when requesting the ARB or CIM API.