Purge Unused Mode

Why do people keep telling us to do Purge Unused 3 times and not just once?

We told our app RV FamilyPurge the same, and that’s why it always does Purge Unused 3 times in each family and nested family it checks.

• The first Purge will delete family types no longer in use,
• The second Purge will remove obsolete materials (used by the family types deleted previously),
• The third Purge then cleans up material assets previously used by the removed materials.

Now you know the number three here is nothing arbitrary!