If your customer is unable to use hotspot they may need to update their APN settings to include data.esim, specifically in the Personal Hotspot section of their APN settings.
Your customer may need to update their APN settings to include data.esim, specifically in the Personal Hotspot section of their APN settings (if they're using an iOS device with an older version of iOS).
Filling out the APN settings as shown below should enable your customer to start using hotspot.
