Set-AzureADUserThumbnailPhoto in Automation Runbook

Question

Hello,

I try to create a Azure Automation Runbook which updates the Profile Pictures of Guest Users.

As I can not define a File in Azure Automation (or Can I?) I want to use the -ImageByteArray Argument . But I dont find any examples of that. I dont know what the Argument expects here in which format.

https://learn.microsoft.com/en-us/powershell/module/azuread/set-azureaduserthumbnailphoto?view=azureadps-2.0

# Get Azure Run As Connection Name  
$connectionName = "AzureRunAsConnection"  
# Get the Service Principal connection details for the Connection name  
$servicePrincipalConnection = Get-AutomationConnection –Name $connectionName           
  
# Logging in to Azure AD with Service Principal  
"Logging in to Azure AD…"  
Connect-AzureAD –TenantId $servicePrincipalConnection.TenantId `  
    –ApplicationId $servicePrincipalConnection.ApplicationId `  
    –CertificateThumbprint $servicePrincipalConnection.CertificateThumbprint  
      
$Guests = Get-AzureADUser -Filter "Usertype eq 'Guest'" -All $True  
ForEach ($Guest in $Guests) {  
   # Does a profilepic exist?  
   $PhotoExists = $Null  
   Try {$PhotoExists = Get-AzureADUserThumbnailPhoto -ObjectId $Guest.ObjectId }  
       Catch {  # No - Update Pic with default Photo  
       Write-Host "Photo does not exist for" $Guest.DisplayName "- updating with default guest logo"  
       Set-AzureADUserThumbnailPhoto -ObjectId $Guest.ObjectId -ImageByteArray  
       }  
}  

Answer 1

Hello @Sascha Reichhardt , glad you found a workaround. From research, likely cause of this issue is in the code in the module.
Here 's a suggested workaround which uses the FileStream Param.

Answer 2

I solved with FilePath and a temp file in the Runbook.

But want to know anyway what a ImageFileArray Sample looks like