In the thread Brad says "If Connection is integrated with an LDAP directory, you must delete the user both in the LDAP directory and in Connection. If you delete the user only in Connection...."
My issue is that i cannot see/find how you delete the user / mail box in only Unity Connection. I am assuming that because its CallManager Business Edition and integrated with LDAP it has to be deleted in LDAP?
Oops! My bad....I didn't read the Business Edition reference The user must be deleted via CUCM as the first step;
If this user is configured in Cisco Unity or Cisco Unity Connection, the user association to Cisco Unified Communications Manager gets broken when you delete the user in Cisco Unified Communications Manager Administration. You can delete the orphaned user in Cisco Unity or Cisco Unity Connection Administration. See the applicable User Moves, Adds, and Changes Guide for Cisco Unity Connection for more information. Refer to the applicable System Administration Guide for Cisco Unity for more Cisco Unity information. Deleting the user will delete all messages in the user voice mailbox.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.