Go to: Start > Settings > Networks & Internet > Cellular (or Mobile). In the drop-down menu at the top, choose the SIM corresponding to your Ubigi eSIM profile to make sure you have selected the right one, you will see the name Ubigi displayed right under Connection settings with the cellular network bars.

Go to: Start > Settings > Networks & Internet > Cellular (or Mobile). On that same page on the Data roaming options field, select Roam in the drop-down menu.

Important: if you have carefully followed previous steps, your Ubigi eSIM profile is now used for the cellular data connection (and NOT your physical SIM card if you have one). This means that you won’t have extra roaming costs as Ubigi rates will be applied while using the Ubigi cellular connectivity. In any case, always ensure that your Ubigi eSIM profile is selected for cellular data to avoid extra roaming costs while abroad.