Categories - how often updated

[JaySt]

quick question.
we're using categories to assign VM's to the backup jobs. manual rescan of the prism central server is needed to immediately make Veeam aware of the VMs within the categories.
i'd like to know how often this rescan is done automatically? i could not find any reference to such a schedule to be able to better anticipate on the timing of such operations when things get migrated to Nutanix.

[Kochkin]

VMs, categories and other objects are rescanned every 15 minutes