diff --git a/doc/100-General/10-Changelog.md b/doc/100-General/10-Changelog.md
index 375f592..f64003a 100644
--- a/doc/100-General/10-Changelog.md
+++ b/doc/100-General/10-Changelog.md
@@ -21,6 +21,7 @@ Released closed milestones can be found on [GitHub](https://github.com/Icinga/ic
 
 ### Enhancements
 
+* [#544](https://github.com/Icinga/icinga-powershell-framework/issues/544) Adds support to configure the Icinga Director JSON string for registering hosts via self-service API
 * [#619](https://github.com/Icinga/icinga-powershell-framework/pull/619) Adds feature to securely read enum provider values with new function `Get-IcingaProviderEnumData`
 * [#623](https://github.com/Icinga/icinga-powershell-framework/issues/623) Adds support to provide the Icinga service user written as `user@domain`
 * [#635](https://github.com/Icinga/icinga-powershell-framework/pull/635) Adds support for `Write-IcingaAgentApiConfig` function to configure the Icinga Agent TLS cipher list setting by new argument `-CipherList`
diff --git a/lib/apis/Register-IcingaDirectorSelfServiceHost.psm1 b/lib/apis/Register-IcingaDirectorSelfServiceHost.psm1
index 980119d..3a9c567 100644
--- a/lib/apis/Register-IcingaDirectorSelfServiceHost.psm1
+++ b/lib/apis/Register-IcingaDirectorSelfServiceHost.psm1
@@ -61,8 +61,26 @@ function Register-IcingaDirectorSelfServiceHost()
         }
     }
 
-    $Interface          = Get-IcingaNetworkInterface $Endpoint;
-    $DirectorConfigJson = [string]::Format('{0} "address":"{2}" {1}', '{', '}', $Interface);
+    $Interface = Get-IcingaNetworkInterface $Endpoint;
+
+    if ($null -eq $Global:Icinga.InstallWizard.DirectorSelfServiceConfig) {
+        $DirectorConfigJson = [string]::Format('{{ "address": "{0}" }}', $Interface);
+    } else {
+        try {
+            $DirectorConfigJson = ConvertTo-Json -InputObject $Global:Icinga.InstallWizard.DirectorSelfServiceConfig -Compress -ErrorAction Stop;
+            $DirectorConfigJson = $DirectorConfigJson.Replace('$ifw.hostaddress$', $Interface);
+            $DirectorConfigJson = $DirectorConfigJson.Replace('$ifw.hostname.tolower$', (Get-IcingaHostname -AutoUseHostname 1 -LowerCase 1));
+            $DirectorConfigJson = $DirectorConfigJson.Replace('$ifw.hostname.toupper$', (Get-IcingaHostname -AutoUseHostname 1 -UpperCase 1));
+            $DirectorConfigJson = $DirectorConfigJson.Replace('$ifw.hostname$', (Get-IcingaHostname -AutoUseHostname 1));
+            $DirectorConfigJson = $DirectorConfigJson.Replace('$ifw.hostfqdn.tolower$', (Get-IcingaHostname -AutoUseFQDN 1 -LowerCase 1));
+            $DirectorConfigJson = $DirectorConfigJson.Replace('$ifw.hostfqdn.toupper$', (Get-IcingaHostname -AutoUseFQDN 1 -UpperCase 1));
+            $DirectorConfigJson = $DirectorConfigJson.Replace('$ifw.hostfqdn$', (Get-IcingaHostname -AutoUseFQDN 1));
+         } catch {
+            # Fallback to default
+            Write-IcingaConsosoleError 'Failed to deserialize your custom Icinga Director Self-Service configuration. Using Icinga for Windows defaults.'
+            $DirectorConfigJson = [string]::Format('{{ "address": "{0}" }}', $Interface);
+        }
+    }
 
     $EndpointUrl = Join-WebPath -Path $DirectorUrl -ChildPath ([string]::Format('/self-service/register-host?name={0}&key={1}', $Hostname, $ApiKey));
 
diff --git a/lib/core/installer/Install-Icinga.psm1 b/lib/core/installer/Install-Icinga.psm1
index 2d9b3d5..4d6090c 100644
--- a/lib/core/installer/Install-Icinga.psm1
+++ b/lib/core/installer/Install-Icinga.psm1
@@ -21,34 +21,35 @@ function Install-Icinga()
     if ($global:Icinga.ContainsKey('InstallWizard') -eq $FALSE) {
         $global:Icinga.Add(
             'InstallWizard', @{
-                'AdminShell'             = (Test-AdministrativeShell);
-                'LastInput'              = '';
-                'LastNotice'             = '';
-                'LastWarning'            = @();
-                'LastError'              = @();
-                'DirectorError'          = '';
-                'HeaderPreview'          = '';
-                'DirectorSelfService'    = $FALSE;
-                'DirectorRegisteredHost' = $FALSE;
-                'DirectorInstallError'   = $FALSE;
-                'LastParent'             = [System.Collections.ArrayList]@();
-                'LastValues'             = @();
-                'DisabledEntries'        = @{ };
-                'Config'                 = @{ };
-                'ConfigSwap'             = @{ };
-                'ParentConfig'           = $null;
-                'Menu'                   = 'Install-Icinga';
-                'NextCommand'            = '';
-                'NextArguments'          = $null;
-                'HeaderSelection'        = $null;
-                'DisplayAdvanced'        = $FALSE;
-                'ShowAdvanced'           = $FALSE;
-                'ShowHelp'               = $FALSE;
-                'ShowCommand'            = $FALSE;
-                'DeleteValues'           = $FALSE;
-                'HeaderPrint'            = $FALSE;
-                'JumpToSummary'          = $FALSE;
-                'Closing'                = $FALSE;
+                'AdminShell'                = (Test-AdministrativeShell);
+                'LastInput'                 = '';
+                'LastNotice'                = '';
+                'LastWarning'               = @();
+                'LastError'                 = @();
+                'DirectorError'             = '';
+                'HeaderPreview'             = '';
+                'DirectorSelfServiceConfig' = $null;
+                'DirectorSelfService'       = $FALSE;
+                'DirectorRegisteredHost'    = $FALSE;
+                'DirectorInstallError'      = $FALSE;
+                'LastParent'                = [System.Collections.ArrayList]@();
+                'LastValues'                = @();
+                'DisabledEntries'           = @{ };
+                'Config'                    = @{ };
+                'ConfigSwap'                = @{ };
+                'ParentConfig'              = $null;
+                'Menu'                      = 'Install-Icinga';
+                'NextCommand'               = '';
+                'NextArguments'             = $null;
+                'HeaderSelection'           = $null;
+                'DisplayAdvanced'           = $FALSE;
+                'ShowAdvanced'              = $FALSE;
+                'ShowHelp'                  = $FALSE;
+                'ShowCommand'               = $FALSE;
+                'DeleteValues'              = $FALSE;
+                'HeaderPrint'               = $FALSE;
+                'JumpToSummary'             = $FALSE;
+                'Closing'                   = $FALSE;
             }
         );
     } else {
diff --git a/lib/core/installer/menu/installation/AdvancedEntries.psm1 b/lib/core/installer/menu/installation/AdvancedEntries.psm1
index cafdd7e..5a220d5 100644
--- a/lib/core/installer/menu/installation/AdvancedEntries.psm1
+++ b/lib/core/installer/menu/installation/AdvancedEntries.psm1
@@ -31,6 +31,7 @@ function Add-IcingaForWindowsInstallationAdvancedEntries()
     Show-IcingaForWindowsInstallationMenuEnterIcingaCAServer -Automated -Advanced;
     Show-IcingaForWindowsInstallerMenuSelectInstallApiChecks -Automated -Advanced;
     Show-IcingaForWindowsInstallerMenuSelectServiceRecovery -Automated -Advanced;
+    Show-IcingaForWindowsManagementConsoleInstallationEnterDirectorSelfServiceConfig -Automated -Advanced;
 
     Enable-IcingaFrameworkConsoleOutput;
 
diff --git a/lib/core/installer/menu/installation/director/SelfServiceConfig.psm1 b/lib/core/installer/menu/installation/director/SelfServiceConfig.psm1
new file mode 100644
index 0000000..72c80fe
--- /dev/null
+++ b/lib/core/installer/menu/installation/director/SelfServiceConfig.psm1
@@ -0,0 +1,65 @@
+function Show-IcingaForWindowsManagementConsoleInstallationEnterDirectorSelfServiceConfig()
+{
+    param (
+        [array]$Value          = @(),
+        [string]$DefaultInput  = 'c',
+        [switch]$JumpToSummary = $FALSE,
+        [switch]$Automated     = $FALSE,
+        [switch]$Advanced      = $FALSE
+    );
+
+    # Ensure we simply set the global variable for the Config in case we run in automation mode
+    if ($Automated) {
+        if ($null -ne $Value -And $null -ne $Value[0]) {
+            $Global:Icinga.InstallWizard.DirectorSelfServiceConfig = ConvertFrom-Json -InputObject $Value[0] -ErrorAction Stop;
+            return;
+        }
+    }
+
+    # Set the default if no value ist set
+    if ($Value -IsNot [array] -Or $null -eq $Value -or $Value.Count -eq 0) {
+        $Value.Clear();
+        if ($null -eq $Global:Icinga.InstallWizard.DirectorSelfServiceConfig) {
+            $Value += '{ "address": "$ifw.hostaddress$" }';
+        } else {
+            $Value += ConvertTo-Json -InputObject $Global:Icinga.InstallWizard.DirectorSelfServiceConfig -Depth 100 -Compress;
+        }
+    }
+
+    Show-IcingaForWindowsInstallerMenu `
+        -Header 'You can update the Icinga Director Self-Service config in this section. USE WITH CARE!' `
+        -Entries @(
+            @{
+                'Command' = 'Show-IcingaForWindowsInstallerConfigurationSummary';
+                'Help'    = 'This is the configuration JSON-Object for the Icinga Director Self-Service API. You can set a custom IP-Address or define the display name of an object with "display_name" as key. Use this methid with caution! Not all configuration elements in general possible are accessible by using the Self-Service keys.';
+            }
+        ) `
+        -DefaultIndex $DefaultInput `
+        -AddConfig `
+        -ConfigLimit 1 `
+        -DefaultValues @( $Value ) `
+        -MandatoryValue `
+        -JumpToSummary:$JumpToSummary `
+        -ConfigElement `
+        -Automated:$Automated `
+        -Advanced:$Advanced;
+
+    # Fetch the current JSON-String inserted by the user
+    [string]$ConfigString = Get-IcingaForWindowsInstallerValuesFromStep;
+
+    if ([string]::IsNullOrEmpty($ConfigString) -eq $FALSE) {
+        try {
+            # Validate that our JSON is correct
+            $Global:Icinga.InstallWizard.DirectorSelfServiceConfig = ConvertFrom-Json -InputObject $ConfigString -ErrorAction Stop;
+        } catch {
+            # Set some defaults to ensure we don't break the installer
+            Write-IcingaConsoleError ([string]::Format('The provided Icinga Director Self Service configuration "{0}" does not appear to be a valid JSON-String. E.g.: {{ "address": "$ifw.hostaddress$" }} without leading and ending "" before and after {{ }}', $ConfigString));
+            $Global:Icinga.InstallWizard.DirectorSelfServiceConfig = $null;
+            Set-IcingaForWindowsInstallerValuesFromStep -Values @( '{ }' );
+        }
+    } else {
+        $Global:Icinga.InstallWizard.DirectorSelfServiceConfig = $null;
+    }
+}
+
+Set-Alias -Name 'IfW-DirectorSelfServiceConfig' -Value 'Show-IcingaForWindowsManagementConsoleInstallationEnterDirectorSelfServiceConfig';
diff --git a/lib/core/installer/tools/CustomConfig.psm1 b/lib/core/installer/tools/CustomConfig.psm1
index 4dc52e2..de033e0 100644
--- a/lib/core/installer/tools/CustomConfig.psm1
+++ b/lib/core/installer/tools/CustomConfig.psm1
@@ -16,7 +16,7 @@ function Invoke-IcingaForWindowsManagementConsoleCustomConfig()
         }
 
         if ($cmdConfig.ContainsKey('Values') -And $null -ne $cmdConfig.Values) {
-            $cmdArguments.Add('Value', $cmdConfig.Values)
+            $cmdArguments.Add('Value', $cmdConfig.Values);
         }
         if ($cmdConfig.ContainsKey('Selection') -And $null -ne $cmdConfig.Selection) {
             $cmdArguments.Add('DefaultInput', $cmdConfig.Selection)
diff --git a/lib/core/installer/tools/SetValuesFromStep.psm1 b/lib/core/installer/tools/SetValuesFromStep.psm1
new file mode 100644
index 0000000..d576aee
--- /dev/null
+++ b/lib/core/installer/tools/SetValuesFromStep.psm1
@@ -0,0 +1,20 @@
+function Set-IcingaForWindowsInstallerValuesFromStep()
+{
+    param (
+        [string]$InstallerStep,
+        [string]$Parent,
+        [array]$Values         = @()
+    );
+
+    $Step = Get-IcingaForWindowsManagementConsoleMenu;
+
+    if ([string]::IsNullOrEmpty($InstallerStep) -eq $FALSE) {
+        $Step = Get-IcingaForWindowsManagementConsoleAlias -Command $InstallerStep;
+
+        if ([string]::IsNullOrEmpty($Parent) -eq $FALSE) {
+            $Step = [string]::Format('{0}:{1}', $Step, $Parent);
+        }
+    }
+
+    $global:Icinga.InstallWizard.Config[$Step].Values = $Values;
+}