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.
My son has two BSA member IDs. The current is 13937435, which has all his achievements. The old one is from Chief Seattle Council, where he only got to be a Lion for a few months before Covid.
The OLD (wrong) one is 136504428 and is still associated with adam.welborn (my husband)–both the old and new ones are associated with him. If you can merge them, great, we just don’t want to lose the current one. Thanks!