Hi Justin,

I haven't seen this particular error before. but lets try and figure it out.

From the message my first thought is that the public/private keys might not be matched up properly, i.e. the request is encrypted with the public key of one set and PayPal tries to descrybt it with a private key from a different set.

I would try and regenerate the keys and upload the private key to your PayPal account again. Also try redownloading the PayPal public key again.

There's typically no certificate id in play in the configuration other than the what is stored in the certificate itself. As long as the cert is referenced properly by path in the config you should be good to go.

I tried the instructions several more times with the same result each time. I was using the OpenSSL recommended in your documentation. I see that the paypal guide https://cms.paypal.com/us/cgi-bin/?cmd=_render-content&content_ID=developer/e_howto_html_encryptedwebpayments#id08A3I0QC0X4__id08A3IL00L2L recommends that you specify the cert_id that is assigned to the public key that you upload to paypal. It also says you can set a [Sandbox] option to denote that you are testing in the sandbox. 

I am running a local version of Umbraco 4.7 with SQL Server Express. I know that running locally will not allow the IPN to work. I am not expecting the IPN to work right now, I just want to be able to test submitting the payment. 

Please let me know what I should try next. 

Thanks,

Justin

Perfect. I think we've all been there at one point or another - it's annoying as hell not knowing what went wrong :)

Just for anyone else stuck with this, the most likely cause is you're trying to post to the sandbox as your normal paypal account, but you have not added your public certificate to the sandbox seller account.

I just had exactly the same problem, and this turned out to be the cause of the error above.  It's easy to diagnose if this is the cause - turn off sandbox mode in the paypal config for uCommerce and you'll probably find the cart will post successfully.

HTH.

Hi Tony,

Thanks for adding this. It will be very helpful for others in the same situation.

Hi Soren,

I am having the same problem and I cannot resolve it. Any ideas what alse I could try?

If you're using OpenSSL to generate a certificate make sure that you type everything out in the command line as opposed to copy/pasting. For some reason a valid cert can't be generated with pasted values.

I keep getting this... driving me insane!!

Hey Jim,

Did you find any solution for this?

Version 3.6.3.13183 of uCommerce includes the new PayPal Express provider, which doesn't require any certs and thus much easier to set up. You might want to give that a shot.

Hi Soren,

Thanks for replying!

I am using the same version and I followed all the instructions given here http://www.publicvoid.dk/SetupUCommerceToIncludePayPalAsAPaymentMethod.aspx.

I tried it 5-6 times but everytime same error. Can you please provide me another guide if I am missing anything here.

I really need it asap.

Did you try changing the provider to PayPal Express?

Thanks Soren,

You are really great!

Superb man :)

Thanks a ton

Hi Soren,

I need your help again.

Now, I need to replace my sandbox account with the client's live paypal account.

Everything is fine except the order description on the paypal page. I am not able to get the order description on paypal page when I move there after completing order from my site.

What am I missing here?

Please help me out. The site is going live tomorrow.

Hi Shuchita,

It seems there might be an issue with your PayPal setup rather than uCommerce when it works on one account, but not the other.

I would take a look at the PayPal account settings and see if there are any differences between the two.

Hope this helps.

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