The following are frequently asked questions relating to testing.

Q: Can I test the iframes before integrating?

Yes! After you have a Nexio account, you can use our Sandbox Tester.

Q: Are there any cards I can test with?

Yes. Test cards vary by implementation. Contact Integrations Support for test cards specific to your needs.

With each integration guide, we also provide a link to testing information. For more information, see the specific guide you need for the connection or payment method.



If you are testing with the Processing Option verifyCvc: true you must set the CVC equal to 111,
otherwise you will receive a 437 Invalid CVC error.