diff --git a/EasyPIM/EasyPIM.psd1 b/EasyPIM/EasyPIM.psd1
index ca02148..227da43 100644
--- a/EasyPIM/EasyPIM.psd1
+++ b/EasyPIM/EasyPIM.psd1
@@ -4,7 +4,7 @@
 RootModule = 'EasyPIM.psm1'
 
 # Version number of this module.
-ModuleVersion = '1.7.4'
+ModuleVersion = '1.7.5'
 
 # Supported PSEditions
 # CompatiblePSEditions = @()
diff --git a/EasyPIM/functions/Get-PIMGroupActiveAssignment.ps1 b/EasyPIM/functions/Get-PIMGroupActiveAssignment.ps1
index 4fe52e0..2323267 100644
--- a/EasyPIM/functions/Get-PIMGroupActiveAssignment.ps1
+++ b/EasyPIM/functions/Get-PIMGroupActiveAssignment.ps1
@@ -34,6 +34,7 @@ function Get-PIMGroupActiveAssignment {
         [Parameter(Position = 0, Mandatory = $true)]
         [String]
         $tenantID,
+        [Parameter(Mandatory = $true)]
         [string]$groupID,
         [string]$memberType,
         [string]$principalName,
diff --git a/EasyPIM/functions/Get-PIMGroupEligibleAssignment.ps1 b/EasyPIM/functions/Get-PIMGroupEligibleAssignment.ps1
index fc674b1..8466c50 100644
--- a/EasyPIM/functions/Get-PIMGroupEligibleAssignment.ps1
+++ b/EasyPIM/functions/Get-PIMGroupEligibleAssignment.ps1
@@ -34,6 +34,7 @@ function Get-PIMGroupEligibleAssignment {
         $tenantID,
         # select the most usefull info only
         [switch]$summary,
+        [Parameter(Mandatory = $true)]
         [string]$groupID,
         [string]$rolename,
         [string]$principalName
diff --git a/EasyPIM/functions/Get-PIMGroupPolicy.ps1 b/EasyPIM/functions/Get-PIMGroupPolicy.ps1
index 9345219..2736109 100644
--- a/EasyPIM/functions/Get-PIMGroupPolicy.ps1
+++ b/EasyPIM/functions/Get-PIMGroupPolicy.ps1
@@ -72,6 +72,10 @@ function Get-PIMGroupPolicy {
 
         }
         
+        #fix #77
+        elseif (!( $PSBoundParameters.ContainsKey('groupID'))) {
+            throw "You must provide a groupID or a groupName"
+        }
                        
         $out = @()
         $groupID | ForEach-Object {