PayPal express_check_out is broken?

[jimiero]

Hello,

Has anyone tested paypal express checkout bundle in production? I have tried to run a test, and keep getting this error:

"TIMESTAMP" => "2020-04-28T09:48:24Z"
      "CORRELATIONID" => "96ca9cf247878"
      "ACK" => "Failure"
      "VERSION" => "65.1"
      "BUILD" => "54492453"
      "L_ERRORCODE0" => "10002"
      "L_SHORTMESSAGE0" => "Security error"
      "L_LONGMESSAGE0" => "Security header is not valid"
      "L_SEVERITYCODE0" => "Error"

I checked and API credentials and signature are provided correctly 100%, i have no idea what could it be.

Can someone assist?

[ekyna]

Hi @jimiero

I've got websites using Payum PayPal EC in production : it works. But trying to setup a new website, i encountered the same error : "Security header is not valid".

I don't know yet if it is the solution, but it seems that we need to ask PayPal to enable "Reference transactions" to make the (old) Express Checout gateway work.

The PayPal Express Checkout integration uses the "Reference Transactions" mechanism of your PayPal account. Approval from PayPal is required to enable reference transactions for your live account.

Source: https://help.zipify.com/en/articles/2351069-oneclickupsell-connecting-paypal-express-checkout

Hope it will help.