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Why did I get API error code 10402?

Issue
PayPal returned error code 10402 - Authorization only is not allowed for merchants.

Cause
This merchant account isn't permitted to set PaymentAction to Authorization.  

Solution
Visit PayPal's Contact Customer Service page to get technical support help for resolving this error.

Note: See the Developer Portal for a complete list of NVP/SOAP API error codes.

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