Enabling ID merge works only moving forward and do...
# questions
c
> Enabling ID merge works only moving forward and does not work retroactively, except for aliased IDs, where the aliases are merged together. Does that mean that, when switching from Legacy to Original ID Merge, profiles existing in our project will not be retroactively merged unless they had alias() called on them? Even if we had events that tied those profiles together by having the distinct_id and device_id?