Sometimes, your eSIM on an iOS device might take a bit longer to start working. This issue usually occurs when you have set up an eSIM but haven’t reached your destination country/region.
The good news is, even if your phone says “activating” or “activation failure,” the eSIM is actually ready and installed. The acivation process will finish when you arrive at your destination with network coverage.
Even if the eSIM seems stuck on “activating,” you should use other phone features that don’t need a network connection.
When you reach your destination and get network coverage, the eSIM will start working, and you can use it without any problems.