SIMULATION_FRAMEWORK_INVALID_NEGATIVE_TESTING_INPUT with PayPal demo

[mobe91]

Hi,

I am trying to use the PayPal demo at https://developer.paypal.com/demo/checkout/#/pattern/client but when I click the checkout button in sandbox mode the request to PayPal fails with HTTP 400 and returns the following:

{
    "name": "SIMULATION_FRAMEWORK_INVALID_NEGATIVE_TESTING_INPUT",
    "message": "Invalid input found. See the following supported cases.",
    "links": [
        {
            "href": "https://developer.paypal.com/docs/api/nt-rest/",
            "rel": "information_link"
        }
    ],
    "details": [
        {
            "issue": "You must have valid input."
        }
    ]
}

The same happens with the button that I have integrated on my website when I use sandbox mode. What is the issue here? I would expect at least the demo to work?!

Thank you

[MTS_Donald · Accepted solution]

Hi @mobe91

There was a temporary issue in the PayPal sandbox which resulted in us incorrectly returning the error code:  SIMULATION_FRAMEWORK_INVALID_NEGATIVE_TESTING_INPUT

This has now been fixed, and the PayPal Demo site along with any integrations against the sandbox should no longer encounter this issue.

Apologies for the inconvenience.