The error message “Cellular Plans from This Carrier Cannot Be Added” is a common issue and typically means that your device is network-locked. In order to use eSIMs, you must have a network-unlocked device.
To find out if your device is locked or not, we’ve outlined a simple process in our guide on “How to Check If My Device Is Locked.” This will help you confirm your device’s status and resolve any network lock issues to enable eSIM usage.