Hi Ronaldo,
This is because the CUCM actually holds a database where all of these users are still tagged as being imported into UC already. You'll have to get fancy with some SQL queries, you can try these, but do it at your own risk.
Open SSH to the CUCM
1) For each user, find the mapping row:
run sql select pkid from enduserappservermap where fkenduser in (select pkid from enduser where userid = 'my_user_alias') and fkappserver in (select pkid from appserver where ipaddr = 'my_connection_server_ip')
In the query above, replace my_user_alias with the alias of the end user and replace my_connection_server_ip with the IP address of the Connection server (or whatever the old Connection server IP address may have been if you changed it after the rebuild).
2) Delete the mapping row:
You should only get back one row. Delete it. Replace my_pkid with the actual pkid that you got back:
run sql delete from enduserappservermap where pkid = 'my_pkid'
Try to import that user again via AXL. That's the user by user way of doing it if you don't have too many, but if you're confident they all can be deleted at once you can do the following:
1. Find all of the users mapped
run sql select * from enduserappservermap
2. The users should all have matching value in the "fkappserver" object ID column if they were mapped to the same pre-existing Connection server. Once you've confirmed the "fkappserver" object ID of the old UC server, issue the bulk delete command, this is irreversible!
run sql delete from enduserappservermap where fkappserver = 'fkappserver_for_old_UC'
Hope that helps,
Brad
