There are two ways you can interact with the Instant Feedback API, either live, or in test mode.
The url to add a customer in the TEST environment is:
Once you have completed testing, the LIVE url is:
NOTE: Validation codes and errors are only given in the TEST environment, so please make sure all testing is done using the TEST url, and only move to the LIVE url once tests have been validated, and you’re ready to move to the live environment. Using the live environment will give you incorrect NPS data, and will also incur SMS costs to your account.