Get-PnPUser PowerShell cmdlet is to get the list of site user. For small sites it work OK, but for sites with a large number of site users the cmdlet fails throwing a warning/error “Get-PnPUser: the request was canceled due to the configured HttpClient.Timeout of 100 seconds elapsing.”. Typically suggested fixes like to increase timeout do not work. Here is how to solve the issue.

Fixes do not work

• Increase the Global Connection Timeout
• Handle Transient API Throttling

Solution

If you need a list of site users – just get the hidden “User Information List” and get all it’s items:

# Target the hidden list object specifically by its internal title
Get-PnPList -Identity "User Information List"
# Extract the list rows and select the relevant columns
Get-PnPListItem -List "User Information List" -PageSize 1000

Surely you’d get a different object type, but still you’ll be able to find properties you need via something like $user[“Name”] for Get-PnPListItem object versus $user.LoginName for Get-PnPUser object. But if you need a Get-PnPUserObject – you always can do something like

Get-PnPUser -Identity $listItem["Name"] 

That is it. You’ll figure out the rest.

P.S. If you need to get all SharePoint site users via Microsoft Graph API – use the same trick – get items from the UIL (as there is no dedicated API entry point to get site users). Here is the “Get SharePoint Site Users via Graph API” KBA.