The expiration date of your eSIM data plan depends on the validity period of the eSIM or the data consumption.
Within the validity period, your eSIM data plan will remain active as long as you have not used up the data allowance.
The validity period starts from the activation of the eSIM. Most eSIMs activate when connected to a supported network at your destination after installation.
Some eSIMs may also activate upon installation, regardless of location.