Since we have migrated to Veeam Backup 6, I can see many snapshot which are called "VEEAM BACKUP TEMPORARY SNAPSHOT" in the snapshot manager of our Vcenter VM :
I dont know what happened, and i'm obliged to delete snapshot every days.
No you're not. Can you please give me a little bit more details about your setup? Do you backup this vCenter Server VM? How is the job configured? Do you use application-aware image processing?
Looks like previous snapshots are not automatically removed (which is not normal), so I would recommend to look through the debug logs with our support team.