Question
What does the 'Revoke All Apps' option located under Settings > Volume Purchasing > [ Name of Volume Purchasing Account ] in Jamf Pro do?
Answer
The Revoke All Apps button only affects the licensing and does not remove applications from devices. When this option is used, Jamf Pro essentially resets it's assigned license count to 0 and then it begins to parse through all of the applications and re-assign the licenses based on the scope currently defined in Jamf Pro.
This process can take an extended and potentially inconvenient amount of time if many licenses are associated with the account. During that time, the applications will remain on the devices.
Keep in mind:
Applications will continue to function normally without an assigned license for up to 30 days.
This process does not affect eBooks in any way, those licenses will remain assigned to the users that have accepted them.