We need the exclusion to avoid this warnings. Sometimes the database team set a database to status offline (sometimes for several days). If we don´t exclude this (offline) database from the backup a warning occurs every day.
We want to avoid these warnings for two reasons:
1. Every warning causes a task for the backup operators.
2. Every year we has to create backup reports for the auditors and we has to explain the many warnings.
SnapManager exclude offline databases automatically 😉