It is essential that Data Roaming is enabled in order to use the eSIM. You can turn on and off your Data Roaming in your settings. Turning on your Data Roaming will allow any eSIM to work with your device.
Turning Data Roaming On
Open the Settings app on your device.
Click on Network & Internet.
Click on Cellular in the left-hand menu.
Scroll down to the Data roaming options section.
To turn on data roaming, toggle the Data roaming switch to the on position. Your device may prompt you to confirm that you want to enable data roaming.