On Demand Scan

[esnecho991280]

Hello Team, 

i have 10 GB of data at rest on One Drive , i would like to use MCAS to run On Demand Scan at a schedule to look for sensitive data by key words or data identifiers ( such as Card number) and notify.

is it supported ? 

[#2]

You might want to have a look at content search in the Compliance center. There you can set your search criteria.
https://docs.microsoft.com/en-us/microsoft-365/compliance/content-search?view=o365-worldwide

[#3]

Why do you need it to be on demand?

MCAS content inspection policies can do this for you continuously and in near real-time.

https://docs.microsoft.com/en-us/cloud-app-security/content-inspection

[#4]

i just upgraded to E5 and i have lots of data that i want to scan and classify, thats why we need.
its a basic requirement for an enterprise. identify data which is at rest and historical. we are not too much concerned about new data which is being accessed or changed.