New-PnPBatch limit for create items in a sp list

[Christian-Stahl]

Here comes just a slightly nerdy question :) I tried to create 100.000 items in a SPO site, that worked just fine but trying to create 1.000.000 items, didn't seem to work, nothing seemed to happen. Whats the teoretical limit in this Cmdlet or what else could be the limit here except the list itself, and what happens on the client side when run this, before executing on the serverside

1..500 | ForEach-Object {
Add-PnPListItem -List "TestList" -Values @{"Title"="Item $_"} -Batch $batch
}
Invoke-PnPBatch -Batch $batch

.. or if using a for loop instead

Cheers :)