We have similar issues to this prior post but with the Unit list name format always giving an error.
We have attempted the following but all give some type of error
Troop 0471 B
Troop 471 B
Unit Lists: Troop 0471 B is not found. Make sure to use the official unit number.
Unit Lists: Please enter the units in the format Troop 0123 B, Troop 0123 G, Crew 0123, Ship 0123 separated by commas
Following report : “# Whoops! We encountered an error trying to process your request.
Our webmaster has been notified and will fix it ASAP!”
I was told our Council does not upload the MBC list into Scoutbook. However AFAIK all of our MBCs are unit only.