HP BSM: Removing licenses

As you already know, you cannot remove licenses through the BUI. The only way there is to remove it from the database directly!
Log in to the DB, into the hp_mgr schema, and:

SELECT license_key FROM licenses;

The rows ending with a "T*" identifier are the actual licenses. Select the license you want to remove, and delete that row (note: the license_key is the key candidate here), and restart BSM, to get the change in effect!

Useful, if you have mistakenly added a prod license to your dev tier, or vice versa.