Once you register the App in our Code Console, the App is auto authorized to read/write data from our public Sandbox.
If you are a provider/system App and need access to a client's domain, you can either join the CODE program
or work directly with a Health System who would then log a request on your behalf to enable your Application in their domain. If you are a patient App you can submit your Application here
. You can read more about CODE program on. https://code.cerner.com/apiaccess