Public/TenantConnection/Connect-CustomerExchange.ps1
|
function Connect-CustomerExchange { [CmdletBinding()] param ( [Parameter(Mandatory)] [string]$CustomerTenantId, [Parameter()] [bool]$Retry ) # Get SAM tokens if not already available begin { if (!$SAMTokens) { $SAMTokens = Get-SAMTokens } } # Generate a token for MS graph, and connect with it. process { try { $exchangeToken = New-CustomPartnerAccessToken -Scopes 'https://outlook.office365.com/.default' -CustomerTenantId $CustomerTenantId } catch { Write-Error "Failed to generate a token for Exchange Online: $_" } try { # Try to re-use existing connections $ConnectionInformation = Get-ConnectionInformation -ErrorAction SilentlyContinue if($ConnectionInformation.DelegatedOrganization -eq $CustomerTenantId){ return } Disconnect-ExchangeOnline -Confirm:$false -ErrorAction SilentlyContinue Connect-ExchangeOnline -DelegatedOrganization $CustomerTenantId -AccessToken $exchangeToken -ShowBanner:$false } catch { if($Retry -eq $true) { Write-Error "Failed to connect to Exchange Online: $_" return } Write-Host "Failed to connect to Exchange Online - perhaps they have not consented to our application correctly? Trying.." -ForegroundColor Yellow Set-SAMConsent -CustomerTenantId $CustomerTenantId Connect-CustomerExchange -CustomerTenantId $CustomerTenantId -Retry:$true } } } |