Virtual Organisation: Expiration Policy
VO membership expires within a given time, typically a year after the VO member joins the VO. VO members receive a notification with the subject "vo.example.org membership will expire soon" warning them that their membership will expire four weeks before expiration. The notification email is sent on a weekly basis and includes all the instructions needed by VO members in order to reapply for a membership.
Click https://rciam.github.io/rciam-docs/docs/manager/virtual-organisations/#expiration-policy link to open resource.