SMS Discovery Data Manager failed to synchronize this site's deletions with all secondary site databases. When discovery ...

%11SMS Discovery Data Manager failed to synchronize this site's deletions with all secondary site databases. When discovery data is deleted, the deletion must be propagated to all secondary sites. In addition, any licenses associated with the deleted resources must be revoked. Because secondary site data is not synchronized, more licenses will be used than is necessary.%12

Possible cause: SQL Server problem on this site or one or more secondary sites.
Solution: 
1. Review the immediately preceding status messages from this component about SQL Server errors.
2. Verify that this computer can reach the SQL Server computer.
3. Verify that SQL Server services are running.
4. Verify that SMS can access the SMS site database.
5. Verify that the SMS site database, transaction log, and tempdb are not full.
6. Verify that there are at least 50 SQL Server user connections, plus 5 for each SMS Administrator console.

If the problem persists, check the SQL Server error logs.%0