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When you update question snapshots, all assessment managers involved in the assessment will be notified that they need to go and look at their surveys again. You may want to inform your users of what was changed and why. You can use the Update notification type to do this (see: Customizing Notifications )
Why Don’t Question Snapshots Automatically Update?
A superuser may edit question objects at any time. You might have an ongoing assessment with open surveys but need to make changes to questions that will be used in a future assessment. For example, laws may have changed and questions need to be updated, but you don’t want to create all new questions because managing large numbers of questions can become cumbersome.
If question snapshots were automatically updated, then it would be impossible to edit the question objects in Isora GRC without affecting running assessments. You would have to wait until all current assessments were completed before you could edit any questions that are used in them. The question snapshots updating feature gives superusers the flexibility to be able to edit questions and choose whether they want those changes to impact running assessments or not.
See also: How to Update a Running Assessment Customizing Notifications