This second step allow LinkCy to verify that the phone number and country code provided by the consumer is valid and he controls the SIM.
If the consumer does not provide a valid code, he will not get access to the KYC step which is also mandatory.
The SMS code is a 6-digits and valid for 10 minutes and the consumer has 5 attempts. Once the delay of the number of attempts is reached, you have to ask for another code by using: Send consumer verification code Endpoint here.
Note: You can simulate that step in a Sandbox environment. Code is always 123456.