SAP BTP - Mass user deletion in a sub account

Original query, unchanged.

let bulk_delete_threshold = 10;
SAPBTPAuditLog_CL
| where isnotnull(Message.object)
| where Message.object has "scim user" and Message.object has "DELETE"
| mv-expand Attributes = Message.attributes
| where isnotempty(Attributes.old)
| extend DeletedUserName = tostring(parse_json(tostring(Attributes.old)).userName)
| where isnotempty(DeletedUserName)
| summarize
    Start = min(UpdatedOn),
    End = max(UpdatedOn),
    DeletedUsers = make_set(DeletedUserName, 100)
    by UserName, Tenant, SpaceId
| where array_length(DeletedUsers) > bulk_delete_threshold
| project Start, End, UserName, DeletedUsers, Tenant, SpaceId, CloudApp = "SAP BTP"
| extend AccountName = split(UserName, "@")[0], UPNSuffix = split(UserName, "@")[1]