When should I activate my Europe data eSIM for travel?

The best approach is to install your Europe eSIM profile at home a day or two before departure, while you have reliable Wi‑Fi and time to troubleshoot if needed. Your plan’s validity period typically only starts once the eSIM connects to a supported network in Europe, so you won’t lose days by setting it up early. Then, when you land, simply enable the eSIM line, set it as your data SIM, and turn on data roaming to start using it.