This is an example today of a perfect post to get issues solved fast IF you have the data - just wanted to pass it on
Dup #1 - ID xxxxxxxxxxx & yyyyyyyyyyyy
Dup #2 - ID xxxxxxxxxxxx & yyyyyyyyyyyy
Dup #3 - ID xxxxxxxxxx & yyyyyyyyyyyy
Dup #4 - ID xxxxxxxxxx & yyyyyyyyyyyy
These are all MID/BSA# xxxxxxxxx are listed in My.Scouting.org Adult Leader Roster and I have verified that for you already.
NOTE: UserID are fine too, it is what we have to use to merge.