Welcome! This forum has a treasure trove of great info – Scouters helping Scouters! Just a heads up, though - all content, information, and opinions shared on this forum are those of the author, not the BSA.
I had a Scout completed his Eagle Board of Review today, so I wanted to mark that he completed his Eagle Rank, which I did, so now Scoutbook displays the green check mark for it. I cannot mark it as “Leader Approved” to get the blue check mark. I am a Troop Admin in Scoutbook.
The Eagle Rank can only be marked Leader Approved by BSA Admin, rather than at the unit level. Some units intentionally leave the “Completed” date off so that they can see when the BSA has approved it.