SAP BTP - Mass user deletion in Cloud Identity Service

Original query, unchanged.

let bulk_delete_threshold = 10;
SAPBTPAuditLog_CL
| extend data_s = tostring(Message.data)
| extend action = extract(@"action=""([^""]+)""", 1, data_s),
         objectType = extract(@"objectType=""([^""]+)""", 1, data_s),
         impactedUser = extract(@"serviceProviderName=""([^""]+)""", 1, data_s)
| where action == "delete"
| where objectType == "authorization"
| where isnotempty(impactedUser)
| summarize
    Start = min(UpdatedOn),
    End = max(UpdatedOn),
    DeleteCount = count(),
    DeletedUsers = make_set(impactedUser, 100)
    by UserName, Tenant, SpaceId
| where array_length(DeletedUsers) > bulk_delete_threshold
| project Start, End, UserName, DeletedUsers, DeleteCount, Tenant, SpaceId, CloudApp = "SAP BTP"
| extend AccountName = split(UserName, "@")[0], UPNSuffix = split(UserName, "@")[1]