I'm using your online testing tool at
https://developer.authorize.net/api/reference/index.html
I put in my Login Id/Transaction Key - I click 'Done'.
I go to Charge A Credit Card - I get 'E00007'.
I've recreated my transaction key a few times. Still just E00007.
I've run a few C# samples, and that gives me E00007 as well.
Our account is in Test mode, but I swapped to Live a few times to see if that helped.
This is my second company to setup, and never had issues with that one.
Since this is the online test tool, this should be pretty simple fix. What else should I look for?
Solved! Go to Solution.
10-23-2017 07:44 AM
Are you attempting to use the same credentials for both production and sandbox? If so, that won't work. Each environment is completely separate and requires separate credentials.
Richard
10-24-2017 07:46 AM
This is still not working. But when I switch to live mode, my C# sample does work. Is there something I need to setup on my account to get sandbox to work?
I'm correctly switching
ApiOperationBase<ANetApiRequest, ANetApiResponse>.RunEnvironment = AuthorizeNet.Environment.SANDBOX;
to
ApiOperationBase<ANetApiRequest, ANetApiResponse>.RunEnvironment = AuthorizeNet.Environment.PRODUCTION;
10-24-2017 06:57 AM
Are you attempting to use the same credentials for both production and sandbox? If so, that won't work. Each environment is completely separate and requires separate credentials.
Richard
10-24-2017 07:46 AM
That is where I was failing. I was thinking that all I had to do is switch from SANDBOX to LIVE. I didn't realize that I have to use an entirely new userId/TransactionId.
Thanks for the response!
10-24-2017 08:04 AM
Hi,
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02-27-2026 11:04 PM
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04-02-2026 12:03 AM
If you’re seeing the E00007 error while using an online testing tool, it usually indicates a connection or validation issue within the tool. Make sure your browser is updated, cookies are enabled, and the URL is correct. If it persists, try clearing your cache or using a different device. For more troubleshooting tips and step-by-step solutions, check this guide: Paint 3d not Working.
04-02-2026 12:38 AM
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04-03-2026 02:12 AM - edited 04-03-2026 02:13 AM
05-04-2026 12:06 AM