If you're going to play in the sandbox, you need to get new API credentials from your sandbox account to enter into your store.
Then to go live again you'll need to get your live API credentials and put those back into your store again.
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18 Aug 2010, 11:42 AM #1
Sensei
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- Jan 2004
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Re: PayPal Express error 10002 security header not valid
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18 Aug 2010, 08:53 PM #2
New Zenner
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- Jul 2010
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Re: PayPal Express error 10002 security header not valid
Thank you so much! Working perfect now!
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3 Sep 2010, 10:25 PM #3
Totally Zenned
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- Jun 2005
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- Kelowna, BC Canada
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Re: PayPal Express error 10002 security header not valid
How'd you fix it? I'm in the same boat and i keep getting that error. I am using the info from my sandbox account, not live. I wasn't at first but figured that out and now I still get the same error.
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3 Sep 2010, 11:17 PM #4
Totally Zenned
- Join Date
- Jun 2005
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- Kelowna, BC Canada
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Re: PayPal Express error 10002 security header not valid
Nevermind... dumb. I was doing my admin on one server, but testing the front end on a different server. Once I noticed that... all is fine. My bad.
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