What causes Invalid Serial Number

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As a security mechanism Genius CED devices are paired to merchant credentials using the device serial number. Because of this, production merchants will have devices configured to their account prior to shipment to the merchant location. Test devices used for integration will also be paired to your specific Genius test account.

If you are integrating to a physical device and receiving this error verify the credentials being used to perform the test transactions. If you are still experiencing difficulty contact the Certification Engineering team at the integrations@cayan.com email address. 

If a device needs to be moved from one merchant account to another, please contact us at the partnersupport@cayan.com email address.