php - PayPal gateway has rejected request. Security header is not valid (#10002: Security error Magento -


pay-pal advance in magenta. I have filled all the credentials in Magenta Admin. When I go to the frontend and click on the PayPal button, then

PayPal gateway has rejected the request. Security header is not valid (# 10002: Security Error

I have done a lot and some suggestions like

Remove the API user name, API password and the API administrator-> ; Configuration-> PayPal-> AP Signing from e / integration settings. Clear cache and test again

I have tried all these, but it still returns the same error.

Please suggest me What can be the problem

Security title is not a valid error due to only two reasons:

  1. Incorrect credentials Make sure you have your API username, API password, and API The signature is kept properly. Sometimes it happens that during accident and during the paste, the accidental location is added, it will trigger this error. Double check this setting in the SDK or in the admin panel of your third party shopping cart.

  2. Incorrect endpoint If you send data, this error will occur. Incorrect endpoint ensure that you have the live credentials at our live endpoint and Sending data. When you want to test your store, make sure you use credentials from our trial endpoint and your sandbox testing account. If you are using a third party shopping cart, make sure your store is running in trial or live mode, about which you are using.

    You also have your credentials here: Live

    SANDBOX

    Give the option to user , pwd and signatures and your Enter in browser.

    You can also get your credentials here: You should get ACK = success.

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