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.
Does this also mean if a Scout started prior to 2/27/26 but it was being tracked in Troopmaster (or another 3rd party system) that the upload to https://advancements.scouting.org/ will not work?