Process Builder or Flow Record Update does not update Archived Activities
|Knowledge Article Number||000230783|
|Description||A Process or Flow with a Record Update action on Tasks or Events does not perform that update on Tasks/Events which are Archived.|
|Resolution||This is an expected behaviour.
A Record Update in Process Builder / Flow runs SOQL like this to retrieve the records to update.
SELECT Id FROM Task WHERE ((Id = '00T4000003Acl0CEAR')) LIMIT 10001
This SOQL query will not return Archived Tasks/Events; Thus those archived tasks/events will not be updated.