WARNING UNITY SERVER

Question

Hi,
I have the next warning of the Unity server:
Level Computer Log Date and Time Source Category Event User 
Warning SVR-UNY-02 Application 2/7/2012 8:43:01 AM CiscoUnity_ConvSub  1053  
While running the subscriber conversation for user:(MARIA JULIAN ESQUIVIAS) 
with extension:(1063) an error occurred when trying to match the message sender 
(AVP_SENDER_OBJECT_ID) to a subscriber in the Unity database. The following 
error was returned:(HR [IAvDohMessage::get_Sender]). 
The subscriber conversation treated the message as if it was from an unknown 
subscriber. As a result the subscriber's recorded name, if available, was not 
played back and reply options were not available. 
Please run DBWalker from Cisco Unity Tools Depot with the option 'Check for 
orphaned entries in the GlobalSubscriber table' to check for database 
inconsistencies.
Level Computer Log Date and Time Source Category Event User 
Warning SVR-UNY-02 Application 2/7/2012 8:43:01 AM CiscoUnity_ConvSub  1053  
While running the subscriber conversation for user:(MARIA JULIAN ESQUIVIAS) 
with extension:(1063) an error occurred when trying to match the message sender 
(AVP_SENDER_OBJECT_ID) to a subscriber in the Unity database. The following 
error was returned:(HR [IAvDohMessage::get_Sender]). 
The subscriber conversation treated the message as if it was from an unknown 
subscriber. As a result the subscriber's recorded name, if available, was not 
played back and reply options were not available. 
Please run DBWalker from Cisco Unity Tools Depot with the option 'Check for 
orphaned entries in the GlobalSubscriber table' to check for database 
inconsistencies.
=====================================================================
The customer wants to know, Why is this warning?
Thanks for your help,
Regards,
David

Answer 1

Here is a similar post that has some follow-up:
https://supportforums.cisco.com/thread/312506