The customer deletes users, but then the users reappear in the user list the next day.
The securlet for a SaaS application lets CloudSOC obtain user information, and CloudSOC uses the information to auto-import users. If the users are in the seccurlet, they will be automatically resynced to cloudSOC.
The customer must first delete the user from the securlet cloud application (onedrive, google drive, etc.) and then delete the user from CloudSOC.