Problems committing changes - "Cannot update the agent's database" (4280864)

Committing changes to a collection fails, and the following error appears:

"Cannot update the agents database."

The EMWmigration.log file (c:\program files\quest software\migration manager\exchange data) contains the following errors:

"3/11/2009 9:30:37 AM aeEMWCommit::CServerOnDB::FromRecordset Error: (AdminMailbox is empty string. Server: SERVERNAME)
3/11/2009 9:30:38 AM aeEMWCommit::CCollection::SaveToAgentDB2::Error: source server was not found in the database.
3/11/2009 9:30:38 AM aeEMWCommit::CCollectionProp::Error in EMWDBCC::CRecordset::Update: 3201 - You cannot add or change a record because a related record is required in table Servers."

To resolve this issue, please re-add the source and target Exchange Organizations to refresh the server data:

1. Right-click Source Organizations, and select Add Source Organization
2. Complete the Wizard re-adding the source Organization.
3. Repeat for Target Organizations.

There may also be an issue with a corrupt config.mdb file. Please see the following solution as there are good config.mdb files attached.

SOL56606 - QMM agents and alternatives to resolve issues when agent is not working as expected? - https://support.quest.com/Search/SolutionDetail.aspx?id=SOL56606

If this doesn't work the please re-install the agent on the server which is having the problem.  Please see solution SOL25169 - What is the right procedure to reinstall a Migration Manager for Exchange agent? - https://support.quest.com/SUPPORT/index?page=solution&id=SOL25169 for instructions on re-installing agents.

The server that is having the problem can be found by looking at the QMM for Exchange Console log.  This log is located on the Workstation/Server on which the Console is installed.  The log file is named EMWMigration.log and it is stored in the '\Program Files\Quest Software\Migration Manager\Exchange Data' folder.