Sandbox Error 500
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hello,
I am testing the integrating for a webshop with sandbox.paypal,com but I always a "500 internal Server Error".
Attached screenshots of the request. What is the reason for this problem?
kind regards,

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
I've got the same problem. It persists even when I create the button from scratch with PayPal's online button generator.
Here's an example of such generated button:
<form action="https://www.sandbox.paypal.com/cgi-bin/webscr" method="post" target="_top"> <input type="hidden" name="cmd" value="_s-xclick"> <input type="hidden" name="encrypted" value="-----BEGIN PKCS7-----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-----END PKCS7----- "> <input type="image" src="https://www.sandbox.paypal.com/en_US/i/btn/btn_buynow_LG.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!"> <img alt="" border="0" src="https://www.sandbox.paypal.com/en_US/i/scr/pixel.gif" width="1" height="1"> </form>
When I submit this form, I always get "Internal Server Error".
Here's the same generated button, but without encryption (the 'email version'):
<a href="https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_xclick&business=rd_dev_zzz%40actimind%2ecom&lc=US&item_name=Test%20Item&item_number=testitem&amount=10%2e00¤cy_code=CAD&button_subtype=services&no_note=1&no_shipping=1&bn=PP%2dBuyNowBF%3abtn_buynow_LG%2egif%3aNonHosted">Buy now</a>
This one works fine.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
I have the same issue
When first request, it always return 500 errors
If I try several times again, it works

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
I'm having the same problem.
What is wrong with this web-service?
When is going to be fixed?
Any additional/helpful information?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content

- « Previous page
- Next page »
Haven't Found your Answer?
It happens. Hit the "Login to Ask the community" button to create a question for the PayPal community.
- Error message for obtaining access_token in REST APIs
- Couldn't receive International payment in PayPal Payments Standard
- Sandbox account collect billing and shipping address in Sandbox Environment
- "System error. Please try again later" when connecting to paypal sandbox account with my android app in Sandbox Environment
- Things don’t appear to be working at the moment in PayPal Payments Standard