Duplicate Mailbox Number

[swans10]

When trying to create a NEW mailbox in Avaya Aura® Communication Manager Messaging Federal Market, It keeps kicking back error

Mailbox Number: Duplicate extension - already in use
(AE_DUPEXT)

This extension is not in use as a mailbox, is there some way to find out why CM thinks it is in use?

[sunilkumarv]

Good day,

if you are unable to view the reported mail box in CMM, then this is possibly a corruption. even though the user might not be visible , it could still exist in the internal ldap database.

you can try running mailbox/Subscriber audit and if it does not work , you may need to raise a Ticket for this as this need root level access to clear up the unwanted users from ldap.

Regards
Sunil