diff --git a/CHANGELOG.md b/CHANGELOG.md
index 26d33cd..1aee181 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,10 @@ All notable changes to this project will be documented in this file.
 ### Changed
 - N/A
 
+### Fixed
+- `New-IDSession`: Adds support for OOB IdP Authentication flows that require a PIN code.
+  - Tenants configured to display a PIN in the browser after external IdP login are now prompted for the PIN and completed via `AdvanceAuthentication`. Previously these tenants would hang in the `OobAuthStatus` polling loop with no way to enter the PIN.
+
 ## [0.3] - 2025-03-09
 
 ### Added
diff --git a/IdentityCommand/Public/New-IDSession.ps1 b/IdentityCommand/Public/New-IDSession.ps1
index d02ae85..083f055 100644
--- a/IdentityCommand/Public/New-IDSession.ps1
+++ b/IdentityCommand/Public/New-IDSession.ps1
@@ -96,20 +96,62 @@ $($IDSession.IdpRedirectShortUrl)
                     #Launches the user's default browser and navigates it to the external identity provider
                     Start-Process $IDSession.IdpRedirectShortUrl
 
-                    $OobAuthStatusRequest = @{ }
-                    $OobAuthStatusRequest['Method'] = 'POST'
-                    #Undocumented endpoint for checking the IdpLoginSessionId's status. Sniffed out from the ark-sdk-python project
-                    $OobAuthStatusRequest['Uri'] = "$tenant_url/Security/OobAuthStatus"
-                    #We need the cookies the server provides in the same response it provides the IdpAuth information
-                    $OobAuthStatusRequest['WebSession'] = $ISPSSSession.WebSession
-                    $OobAuthStatusRequest['Body'] = @{SessionId = $IDSession.IdpLoginSessionId} | ConvertTo-Json
+                    if ($IDSession.IdpOobAuthPinRequired) {
 
-                    $IDSession = Invoke-IDRestMethod @OobAuthStatusRequest
+                        #A PIN code is displayed in the browser after IdP login and must be entered here
+                        #to complete authentication via AdvanceAuthentication.
+                        $Pin = Read-Host -Prompt 'Enter the PIN code displayed after you logged in to your identity provider' -AsSecureString
 
-                    while ($IDSession.State -ne 'Success') {
-                        Start-Sleep 2
+                        $OobPinAuthRequest = @{ }
+                        $OobPinAuthRequest['Method'] = 'POST'
+                        #Use the session tenant_url so that any PodFqdn redirect from Start-Authentication is honoured
+                        $OobPinAuthRequest['Uri'] = "$($ISPSSSession.tenant_url)/Security/AdvanceAuthentication"
+                        $OobPinAuthRequest['WebSession'] = $ISPSSSession.WebSession
+                        $OobPinAuthRequest['Body'] = @{
+                            SessionId   = $IDSession.IdpLoginSessionId
+                            MechanismId = 'OOBAUTHPIN'
+                            Action      = 'Answer'
+                            Answer      = Unprotect-Answer $Pin
+                        } | ConvertTo-Json
+
+                        try {
+
+                            $IDSession = Invoke-IDRestMethod @OobPinAuthRequest
+
+                            if ($IDSession.Summary -ne 'LoginSuccess' -or -not $IDSession.Token) {
+
+                                throw 'Failed to complete OOB IdP authentication with PIN code'
+
+                            }
+
+                        } catch {
+
+                            #Cleanup Authentication on any error at the PIN submission stage
+                            Clear-AdvanceAuthentication
+
+                            throw $PSItem
+
+                        }
+
+                    } else {
+
+                        $OobAuthStatusRequest = @{ }
+                        $OobAuthStatusRequest['Method'] = 'POST'
+                        #Undocumented endpoint for checking the IdpLoginSessionId's status. Sniffed out from the ark-sdk-python project
+                        #Use the session tenant_url so that any PodFqdn redirect from Start-Authentication is honoured
+                        $OobAuthStatusRequest['Uri'] = "$($ISPSSSession.tenant_url)/Security/OobAuthStatus"
+                        #We need the cookies the server provides in the same response it provides the IdpAuth information
+                        $OobAuthStatusRequest['WebSession'] = $ISPSSSession.WebSession
+                        $OobAuthStatusRequest['Body'] = @{SessionId = $IDSession.IdpLoginSessionId} | ConvertTo-Json
 
                         $IDSession = Invoke-IDRestMethod @OobAuthStatusRequest
+
+                        while ($IDSession.State -ne 'Success') {
+                            Start-Sleep 2
+
+                            $IDSession = Invoke-IDRestMethod @OobAuthStatusRequest
+                        }
+
                     }
 
                     break
diff --git a/IdentityCommand/en-US/IdentityCommand-help.xml b/IdentityCommand/en-US/IdentityCommand-help.xml
index ac6db53..91febe2 100644
--- a/IdentityCommand/en-US/IdentityCommand-help.xml
+++ b/IdentityCommand/en-US/IdentityCommand-help.xml
@@ -1250,6 +1250,7 @@ LastCommandResults             {"success":true,"Result":{"SomeResult"}}</dev:cod
       <maml:para>Allows a user to provide authentication details, and satisfy any required MFA challenges.</maml:para>
       <maml:para>Currently supports all Identity MFA authentication mechanisms except U2F &amp; DUO.</maml:para>
       <maml:para>When you specify a username associated with a SAML or OIDC-based federation, then you will be redirected to the external identity provider to authenticate. Alternatively, you can provide a SamlAssertion from a configured external IDP.</maml:para>
+      <maml:para>If your tenant is configured to require a PIN code after external identity provider authentication, you will be prompted to enter the PIN code displayed in the browser to complete the sign-in.</maml:para>
     </maml:description>
     <command:syntax>
       <command:syntaxItem>
diff --git a/Tests/New-IDSession.Tests.ps1 b/Tests/New-IDSession.Tests.ps1
index de6d68b..99979f6 100644
--- a/Tests/New-IDSession.Tests.ps1
+++ b/Tests/New-IDSession.Tests.ps1
@@ -222,6 +222,221 @@ Describe $($PSCommandPath -Replace '.Tests.ps1') {
 
         }
 
+        Context 'OOB IdP Authentication' {
+
+            BeforeEach {
+
+                Mock Start-Process -MockWith {}
+
+                #Downstream switch expects a WebSession on successful auth
+                Mock Invoke-IDRestMethod -MockWith {
+                    $ISPSSSession.WebSession = New-Object Microsoft.PowerShell.Commands.WebRequestSession
+                    [pscustomobject]@{
+                        Summary = 'LoginSuccess'
+                        Token   = 'SomeToken'
+                        State   = 'Success'
+                    }
+                }
+
+            }
+
+            Context 'PIN required' {
+
+                BeforeEach {
+
+                    Mock Start-Authentication -MockWith {
+                        [pscustomobject]@{
+                            TenantId              = 'SomeID'
+                            SessionId             = 'SomeSession'
+                            IdpRedirectShortUrl   = 'https://short.example/x'
+                            IdpLoginSessionId     = 'IDP-123'
+                            IdpOobAuthPinRequired = $true
+                        }
+                    }
+
+                    Mock Read-Host -MockWith {
+                        ConvertTo-SecureString 'TEST-PIN' -AsPlainText -Force
+                    }
+
+                }
+
+                It 'launches the browser to the IdpRedirectShortUrl' {
+                    New-IDSession -tenant_url https://somedomain.id.cyberark.cloud -Credential $Creds
+                    Assert-MockCalled -CommandName Start-Process -Times 1 -Exactly -Scope It -ParameterFilter {
+                        $args[0] -eq 'https://short.example/x' -or $FilePath -eq 'https://short.example/x'
+                    }
+                }
+
+                It 'prompts for the PIN as a secure string' {
+                    New-IDSession -tenant_url https://somedomain.id.cyberark.cloud -Credential $Creds
+                    Assert-MockCalled -CommandName Read-Host -Times 1 -Exactly -Scope It -ParameterFilter {
+                        $AsSecureString -eq $true
+                    }
+                }
+
+                It 'sends the PIN to AdvanceAuthentication with the OOBAUTHPIN mechanism' {
+                    New-IDSession -tenant_url https://somedomain.id.cyberark.cloud -Credential $Creds
+                    Assert-MockCalled -CommandName Invoke-IDRestMethod -Times 1 -Exactly -Scope It -ParameterFilter {
+                        $Uri -eq 'https://somedomain.id.cyberark.cloud/Security/AdvanceAuthentication' -and
+                        $Method -eq 'POST' -and
+                        ($Body | ConvertFrom-Json).MechanismId -eq 'OOBAUTHPIN' -and
+                        ($Body | ConvertFrom-Json).Action -eq 'Answer' -and
+                        ($Body | ConvertFrom-Json).Answer -eq 'TEST-PIN'
+                    }
+                }
+
+                It 'sends the IdpLoginSessionId as the SessionId in the PIN request' {
+                    New-IDSession -tenant_url https://somedomain.id.cyberark.cloud -Credential $Creds
+                    Assert-MockCalled -CommandName Invoke-IDRestMethod -Times 1 -Exactly -Scope It -ParameterFilter {
+                        $Uri -match 'AdvanceAuthentication$' -and
+                        ($Body | ConvertFrom-Json).SessionId -eq 'IDP-123'
+                    }
+                }
+
+                It 'does not call OobAuthStatus when a PIN is required' {
+                    New-IDSession -tenant_url https://somedomain.id.cyberark.cloud -Credential $Creds
+                    Assert-MockCalled -CommandName Invoke-IDRestMethod -Times 0 -Exactly -Scope It -ParameterFilter {
+                        $Uri -match 'OobAuthStatus$'
+                    }
+                }
+
+                It 'does not invoke Start-AdvanceAuthentication (MFA challenge loop is bypassed)' {
+                    New-IDSession -tenant_url https://somedomain.id.cyberark.cloud -Credential $Creds
+                    Assert-MockCalled -CommandName Start-AdvanceAuthentication -Times 0 -Exactly -Scope It
+                }
+
+                It 'builds the PIN request URI from ISPSSSession.tenant_url after a PodFqdn redirect' {
+                    Mock Start-Authentication -MockWith {
+                        #Simulate the PodFqdn redirect performed by Start-Authentication
+                        $ISPSSSession.tenant_url = 'https://pod.id.cyberark.cloud'
+                        [pscustomobject]@{
+                            TenantId              = 'SomeID'
+                            SessionId             = 'SomeSession'
+                            IdpRedirectShortUrl   = 'https://short.example/x'
+                            IdpLoginSessionId     = 'IDP-123'
+                            IdpOobAuthPinRequired = $true
+                        }
+                    }
+                    New-IDSession -tenant_url https://somedomain.id.cyberark.cloud -Credential $Creds
+                    Assert-MockCalled -CommandName Invoke-IDRestMethod -Times 1 -Exactly -Scope It -ParameterFilter {
+                        $Uri -eq 'https://pod.id.cyberark.cloud/Security/AdvanceAuthentication'
+                    }
+                }
+
+            }
+
+            Context 'PIN required - error handling' {
+
+                BeforeEach {
+
+                    Mock Start-Authentication -MockWith {
+                        [pscustomobject]@{
+                            TenantId              = 'SomeID'
+                            SessionId             = 'SomeSession'
+                            IdpRedirectShortUrl   = 'https://short.example/x'
+                            IdpLoginSessionId     = 'IDP-123'
+                            IdpOobAuthPinRequired = $true
+                        }
+                    }
+
+                    Mock Read-Host -MockWith {
+                        ConvertTo-SecureString 'TEST-PIN' -AsPlainText -Force
+                    }
+
+                    Mock Clear-AdvanceAuthentication -MockWith {}
+
+                }
+
+                It 'invokes Clear-AdvanceAuthentication and re-throws on API error' {
+                    Mock Invoke-IDRestMethod -MockWith { throw 'Wrong PIN' }
+                    { New-IDSession -tenant_url https://somedomain.id.cyberark.cloud -Credential $Creds } |
+                        Should -Throw -ExpectedMessage 'Wrong PIN'
+                    Assert-MockCalled -CommandName Clear-AdvanceAuthentication -Times 1 -Exactly -Scope It
+                }
+
+                It 'invokes Clear-AdvanceAuthentication and throws on non-LoginSuccess response' {
+                    Mock Invoke-IDRestMethod -MockWith {
+                        [pscustomobject]@{
+                            Summary = 'SomeOtherSummary'
+                            Token   = 'SomeToken'
+                        }
+                    }
+                    { New-IDSession -tenant_url https://somedomain.id.cyberark.cloud -Credential $Creds } |
+                        Should -Throw
+                    Assert-MockCalled -CommandName Clear-AdvanceAuthentication -Times 1 -Exactly -Scope It
+                }
+
+                It 'invokes Clear-AdvanceAuthentication and throws when Token is missing' {
+                    Mock Invoke-IDRestMethod -MockWith {
+                        [pscustomobject]@{
+                            Summary = 'LoginSuccess'
+                        }
+                    }
+                    { New-IDSession -tenant_url https://somedomain.id.cyberark.cloud -Credential $Creds } |
+                        Should -Throw
+                    Assert-MockCalled -CommandName Clear-AdvanceAuthentication -Times 1 -Exactly -Scope It
+                }
+
+            }
+
+            Context 'Polling (no PIN required)' {
+
+                BeforeEach {
+
+                    Mock Start-Authentication -MockWith {
+                        [pscustomobject]@{
+                            TenantId            = 'SomeID'
+                            SessionId           = 'SomeSession'
+                            IdpRedirectShortUrl = 'https://short.example/x'
+                            IdpLoginSessionId   = 'IDP-123'
+                        }
+                    }
+
+                }
+
+                It 'polls OobAuthStatus with the IdpLoginSessionId' {
+                    New-IDSession -tenant_url https://somedomain.id.cyberark.cloud -Credential $Creds
+                    Assert-MockCalled -CommandName Invoke-IDRestMethod -Times 1 -Exactly -Scope It -ParameterFilter {
+                        $Uri -eq 'https://somedomain.id.cyberark.cloud/Security/OobAuthStatus' -and
+                        $Method -eq 'POST' -and
+                        ($Body | ConvertFrom-Json).SessionId -eq 'IDP-123'
+                    }
+                }
+
+                It 'does not call AdvanceAuthentication when no PIN is required' {
+                    New-IDSession -tenant_url https://somedomain.id.cyberark.cloud -Credential $Creds
+                    Assert-MockCalled -CommandName Invoke-IDRestMethod -Times 0 -Exactly -Scope It -ParameterFilter {
+                        $Uri -match 'AdvanceAuthentication$'
+                    }
+                }
+
+                It 'does not prompt the user for a PIN' {
+                    Mock Read-Host -MockWith { throw 'Read-Host should not be called in the polling path' }
+                    { New-IDSession -tenant_url https://somedomain.id.cyberark.cloud -Credential $Creds } |
+                        Should -Not -Throw
+                }
+
+                It 'builds the polling request URI from ISPSSSession.tenant_url after a PodFqdn redirect' {
+                    Mock Start-Authentication -MockWith {
+                        #Simulate the PodFqdn redirect performed by Start-Authentication
+                        $ISPSSSession.tenant_url = 'https://pod.id.cyberark.cloud'
+                        [pscustomobject]@{
+                            TenantId            = 'SomeID'
+                            SessionId           = 'SomeSession'
+                            IdpRedirectShortUrl = 'https://short.example/x'
+                            IdpLoginSessionId   = 'IDP-123'
+                        }
+                    }
+                    New-IDSession -tenant_url https://somedomain.id.cyberark.cloud -Credential $Creds
+                    Assert-MockCalled -CommandName Invoke-IDRestMethod -Times 1 -Exactly -Scope It -ParameterFilter {
+                        $Uri -eq 'https://pod.id.cyberark.cloud/Security/OobAuthStatus'
+                    }
+                }
+
+            }
+
+        }
+
         Context 'Output' {
 
             BeforeEach {
diff --git a/docs/collections/_commands/New-IDSession.md b/docs/collections/_commands/New-IDSession.md
index 8793501..9e9c679 100644
--- a/docs/collections/_commands/New-IDSession.md
+++ b/docs/collections/_commands/New-IDSession.md
@@ -31,6 +31,8 @@ Currently supports all Identity MFA authentication mechanisms except U2F & DUO.
 
 Supports federated authentication when providing a SamlAssertion from a configured external IDP.
 
+If your tenant is configured to require a PIN code after external identity provider authentication, you will be prompted to enter the PIN code displayed in the browser to complete the sign-in.
+
 ## EXAMPLES
 
 ### Example 1