Texecom Premier/Premier Elite?
If using wintex you can delete the code on the tag box and update the panel.
If you don’t have wintex you can go to setup users in engineering or via the master user, press 1 new tag and then press reset, it will go onto the next user and the tag has been removed from the system.
you then need to make sure the C is removed in user locked by menu in setup users.
You can then use user codes and no tag.