Dataverse - Mass deletion of records

Original query, unchanged.

let mass_delete_threshold = 10000;
let query_frequency = 1d;
let delete_activities = DataverseActivity
    | where TimeGenerated >= ago(query_frequency)
    | where Message == "Delete";
union
    (
    delete_activities
    | summarize FirstEvent = min(TimeGenerated), TotalEvents = count() by UserId, InstanceUrl
    | where TotalEvents > mass_delete_threshold
    | join kind=inner (
        delete_activities
        | summarize DeleteCount = count() by UserId, InstanceUrl, ClientIp, EntityName)
        on UserId, InstanceUrl
    | extend Entities = bag_pack("Entity", EntityName, "Count", DeleteCount)
    | summarize Details = make_set(Entities, 100), FirstEvent = min(FirstEvent) by UserId, InstanceUrl, ClientIp, TotalEvents
    ),
    (
    DataverseActivity
    | where TimeGenerated >= ago(query_frequency)
    | where Message == "BulkDelete"
    | summarize FirstEvent = min(TimeGenerated), TotalEvents = count() by UserId, InstanceUrl, ClientIp
    | extend Details = todynamic("Bulk delete scheduled")
    )
| extend
    CloudAppId = int(32780),
    AccountName = tostring(split(UserId, '@')[0]),
    UPNSuffix = tostring(split(UserId, '@')[1])
| project
    FirstEvent,
    UserId,
    ClientIp,
    TotalEvents,
    Details,
    InstanceUrl,
    CloudAppId,
    AccountName,
    UPNSuffix