• Getting the following error

    SetExpressCheckout API call failed.

    Error Code: 10002
    Error Severity Code: Error
    Short Error Message: Security error
    Detailed Error Message: Security header is not valid
    User IP: 108.xx.xxx.xxx

    Spoke to Paypal and all the settings are correct, however they said to check the “end points” Where are these and what do I change them to?

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