To audit a edX resource, click on the ‘Enroll’ button that will be available if the course provides a free option. Then click on the ‘Continue’ button instead of the ‘Upgrade Now’ button. Please note that there is a time limit for auditing a resource. For more information please refer to the guidelines found here: https://support.edx.org/hc/en-us/articles/1500003964681-What-does-audit-mean-What-is-the-audit-track-#h_01F0XZMW7M5G6P9WASPGJ74KH4
