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.

There is also a basic table of test cards in the Developer Tools section.



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.

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