diff --git a/Process-ADObjects-Base.ps1 b/Process-ADObjects-Base.ps1
index 459fb76..abdc4e3 100644
--- a/Process-ADObjects-Base.ps1
+++ b/Process-ADObjects-Base.ps1
@@ -170,11 +170,6 @@ function getRoleType
 
 function buildPrefixMatcher
 {
-    param(
-        [Parameter(Mandatory = $true, Position = 0)]
-        [string]$CsvPath
-    )
-
     $byLength = [System.Collections.Generic.Dictionary[int, System.Collections.Generic.HashSet[string]]]::new()
 
     foreach ($row in $SPK.ProfilPrefixes)
diff --git a/Process-ADObjects-Work-R125.ps1 b/Process-ADObjects-Work-R125.ps1
index 93c0dda..ee5d044 100644
--- a/Process-ADObjects-Work-R125.ps1
+++ b/Process-ADObjects-Work-R125.ps1
@@ -1633,7 +1633,7 @@ function ProcessADObjects
       $adObjectEntry.GUIADGroupDisplayName = $DisplayName
     }
 
-    $prefixMatcher = buildPrefixMatcher $KURSProfilePrefixes
+    $prefixMatcher = buildPrefixMatcher
 
     $ProfilNummer = 470000000
     $ProfilNummerLM = 471000000
diff --git a/Process-ADObjects-Work-Y015.ps1 b/Process-ADObjects-Work-Y015.ps1
index 747030c..abbdbd5 100644
--- a/Process-ADObjects-Work-Y015.ps1
+++ b/Process-ADObjects-Work-Y015.ps1
@@ -1633,8 +1633,8 @@ function ProcessADObjects
       $adObjectEntry.GUIADGroupDisplayName = $DisplayName
     }
 
-    $prefixMatcher = buildPrefixMatcher $KURSProfilePrefixes
-
+    $prefixMatcher = buildPrefixMatcher 
+    
     $ProfilNummer = 470000000
     $ProfilNummerLM = 471000000
     $iSonstiges = 0
diff --git a/Process-ADObjects.ps1 b/Process-ADObjects.ps1
index aa059e1..343fae1 100644
--- a/Process-ADObjects.ps1
+++ b/Process-ADObjects.ps1
@@ -59,7 +59,7 @@ Remove-Item -Path $LogFileName -ErrorAction Ignore
 
 if ($Config.CleanWorkDirs)
 {
-    clearWorkDirectories @($InstituteRootPathTmp, $InstituteRootPathOut)
+  clearWorkDirectories @($InstituteRootPathTmp, $InstituteRootPathOut)
 }
 $IsTestMode = checkTestMode
 $InstitutsSourcePath = $PSScriptroot + "/Process-ADObjects-Work-" + $Institut + ".ps1"
@@ -96,11 +96,6 @@ $KURSPositionfunctionsPositionsInFilePathRegExp = "$InstituteRootPathIn" + $Inst
 $KURSProfileEmployeeInFilePathRegExp = "$InstituteRootPathIn" + $Institut + "_KURSProfile-Mitarbeiter" + ".csv"
 $KURSProfileDAWRightsInFilePathRegExp = "$InstituteRootPathIn" + $Institut + "_KURSProfile-DAWBerechtigungen" + ".csv"
 
-################ this is NEW input ##################################################################
-$KURSProfileNumberMapping = "$InstituteRootPathIn" + $Institut + "_ProfilNummernMapping" + ".csv"
-$KURSProfilePrefixes = "$InstituteRootPathIn" + $Institut + "_ProfilPrefixe" + ".csv"
-################ this is NEW input ##################################################################
-
 $ADObjectsFilePath = Get-ChildItem -Path $ADObjectsFilePathRegExp | Sort-Object Name | Select-Object -Last 1
 $ADObjectMembershipsFilePath = Get-ChildItem -Path $ADObjectMembershipsFilePathRegExp | Sort-Object Name | Select-Object -Last 1