alexdeejay17 0 Posted June 10, 2021 Share Posted June 10, 2021 Hi! When trying to approve user credit withdrawals from my page, I get this error: 1X200 / 1 Security header is not valid Link to comment Share on other sites More sharing options...
Administrator Tony 5,207 Posted August 11, 2021 Administrator Share Posted August 11, 2021 Your PayPal API credentials are invalid. Link to comment Share on other sites More sharing options...
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