Understanding License Validity

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Each license has a validity period, for example: 6 months, 1 year, 2 years. After being activated, a license also has an expiry date, which is calculated as Activation Date + Validity Period. For example, if a 1-year license is activated on January 1st 2022, then its expiry date is January 1st 2023.
Note that: A license cannot be deactivated. An activated license continues counting towards its expiry date, even if its licensed service is deactivated.