PayPal error (10002): Security error – Security header is not valid
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I am replacing Paypal plugin with YITH one, just so the payment checkout can be done in the popup.
I have copied and pasted the paypal credentials as I have on the current plugin, yet I am receiving “PayPal error (10002): Security error – Security header is not valid”.
Looking up I found this is due to incorrect API credentials, but again I have simply copied and pasted form the current plugin that works.
What else could it be?
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Viewing 3 replies - 1 through 3 (of 3 total)
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