Paypal Api Security Error
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each other. Join them; it only takes a minute: Sign up Express Checkout error message: “Security header is not valid” up vote 25 down vote favorite 4 I'm implementing Express Checkout in PayPal. I have no problem with the https://support.bigcommerce.com/articles/Public/What-does-Security-Header-is-Not-Valid-10002-for-PayPal-mean first two steps, SetExpressCheckout and GetExpressCheckout. But when I use DoExpressCheckout, I encounter the error "Security header is not valid". The API credentials are the same! I've fixed it by changing the $environment to live in DoExpressCheckout. (The difference $environment makes is that it'll use https://api.sandbox.paypal.com/nvp/ instead of https://api-3t.$environment.paypal.com/nvp) But why? Is there something wrong with https://api-3t.$environment.paypal.com/nvp? api paypal checkout share|improve this question edited May 18 '11 at 13:44 Jeremy Visser 2,4781523 asked Nov 11 '09 at http://stackoverflow.com/questions/1712685/express-checkout-error-message-security-header-is-not-valid 2:46 Paypal 1711310 add a comment| 3 Answers 3 active oldest votes up vote 33 down vote https://api-3t.sandbox.paypal.com/nvp requires different user-accounts than what https://api-3t.paypal.com/nvp requires. The sandbox accounts can be activated at developer.paypal.com share|improve this answer edited Dec 19 '13 at 11:20 Matt Baker 1,57511028 answered Jun 16 '10 at 8:18 Cheery 10k74372 add a comment| up vote 10 down vote I had the same error being thrown for the live environment. For me, it turned out there was a trailing space at the end of my API username.... I removed the space and it worked fine.... I'd pasted them into a config file straight from PayPal and must've copied a blank there as well... so if this happens to you, check for trailing spaces! This would've been obvious if the username was hardcoded in a string, but wasn't because it was in a java properties file. note that you'll also get this error if your credentials are wrong (ie bad username, password or signature). I just had the same issue happen when I pasted in my info to a config file, and had extra characters at the end of my signature by mistake. share|improve this answer edited Jul 21 '12 at 0:46 answered Jun 14 '12 at 17:37 Brad Parks 14.1k18112140 5 I had this because I used Test Account vs. API Username, which both look similar
Adaptive Payments Payouts Payouts Mass Pay Authentication & Security Vault Log In with PayPal Adaptive Accounts Permissions http://developer.paypal.com/docs/classic/api/errorcodes/ APIs REST APIs API Overview Authentication and Headers API Reference REST SDKs REST SDKs Quickstart NVP / SOAP API reference Support Enter search term Dashboard http://www.paidmembershipspro.com/security-header-is-not-valid/ Dashboard My Apps & Credentials My Account Sandbox Accounts Notifications Transactions IPN Simulator Webhooks Simulator Webhooks Events Live Transactions Webhooks Events Log In ← Back security header to APIsError CodesGeneral ErrorsAddressVerify ErrorsBilling Agreements ErrorsSetCustomerBillingAgreement ErrorsGetBillingAgreementCustomerDetails ErrorsCreateBillingAgreement ErrorsBAUpdate ErrorsDirect Payments ErrorsDoDirectPayment ErrorsDoDirectPayment Processor Response CodesDoReferenceTransaction ErrorsExpress Checkout ErrorsSetExpressCheckout ErrorsGetExpressCheckoutDetails ErrorsDoExpressCheckoutPayment ErrorsAuthorization & Capture ErrorsManagePendingTransactionStatus ErrorsMass Payments ErrorsMassPay ErrorsMassPay Failed Transactions IPN Reason CodesRecurring Payments ErrorsRefunds ErrorsRefundTransaction ErrorsDoNonReferencedCredit ErrorsRefund ErrorsTransactionSearch ErrorsUniversal Air Travel Plans ErrorsDoUATPAuthorization ErrorsDoUATPExpressCheckoutPayment ErrorsValidation Errors API error security header is codes A PayPal API operation can return multiple error and warning codes. Error category Error codes General errors 10002 to 10101 AddressVerify errors 10004 to 10014 Billing Agreement errors 10004 to 13200 Direct Payments errors (Website Payments Pro) 10001 to 15012 DoReferenceTransaction errors 10001 to 18014 Express Checkout errors 10001 to 19065 ManagePendingTransactionStatus errors 10014 to 11614 Mass Payments errors 10001 to 10327 Recurring Payments errors 10001 to 15004 Refund errors 10001 to 15011 500000 to 589061 TransactionSearch errors 10001 to 11002 Universal Air Travel Plan (UATP) errors 10001 to 15010 Validation errors 81000 to 99998 Documentation Make First REST Call REST API Reference NVP / SOAP API Reference Alphabetical Directory Dashboard My Apps My Account Sandbox Accounts Sandbox Transactions Live Transactions Support FAQ Stack Overflow PayPal Technical Support PayPal Support Resources PayPal on GitHub Developer Blog Demo Portal Partners Our Family PayPal Braintree Venmo Paydiant Xoom Privacy Legal Contact Co
All Docs Add Ons Themes Gateways PayPal Stripe Authorize.Net Braintree 2Checkout CyberSource Add a New Gateway Support & Forums How To PDF Guides Webinar Recordings Videos Showcase Testimonials Sites Blog Username or E-mail Password Login with: Remember Me Register Lost Password Skip to content Paid Memberships Pro Membership Plugin for WordPress Log InRegister Search for: About Features Screenshots Pricing Docs Download & Install Initial Setup Membership Levels Payment Gateways Content Controls Customizing Emails Languages Discount Codes Caching Hooks and Filters Step-by-Step Guides View All Docs Add Ons Themes Gateways PayPal Stripe Authorize.Net Braintree 2Checkout CyberSource Add a New Gateway Support & Forums How To PDF Guides Webinar Recordings Videos Showcase Testimonials Sites Blog Home / Blog / Security Header is Not Valid Security Header is Not Valid by Jason Coleman | General If you get the error message "security header is not valid" when checking out at your site running Paid Memberships Pro, this is a PayPal error indicating that the API credentials are incorrect.
The list of PayPal error codes doesn't say much on how to fix this. What you need to do is: Make sure you've selected the correct Gateway Environment (Sandbox/Testing or Live). Make sure you are using the correct Account Email, API Username, API Password, and API signature for the environment you selected. (Your live and test API information will be different.) If in the test environment, make sure that you are logged into developer.paypal.com. This shouldn't be required anymore but is worth a shot. Make sure you have a Site Title set in your WP dashboard General Settings. Try removing any special characters from your membership level names. That should do it! Share this:TwitterFacebookLinkedInGoogleEmail Register For Free Join our ma