Background: Migrating approximately 64,000 posts using REST API to create threads/replies.
Issue: Date for posts entered appropriately. Activity Story Stream uses the REST Migration date instead of the post date/time, pushing other, non-migrated content down 64K spaces.
Activity Story has correct "Created" date but LastUpdate shows the migration time (which I suppose is technically correct) not the merged date.
Is there a method to override this?