Copy Permissions from One SharePoint Site to Another using PowerShell

Requirement: Copy permissions from one site to another in SharePoint!

Solution: If you want to copy one SharePoint site to another site, there is no OOTB ways! However, You can use PowerShell to copy permissions between sites. Here is my PowerShell script to copy site permissions.
copy permissions from one sharepoint site to another using powershell

Copy Permissions from one site to another using PowerShell:
Add-PSSnapin Microsoft.SharePoint.PowerShell -erroraction SilentlyContinue
#PowerShell Function to copy permissions from one site to another
Function Copy-SitePermissions()
 Try {
  #Set the Error Action
    $ErrorActionPreference = "Stop"
  #Get the Source and Target Webs
  $SourceWeb = Get-SPWeb $SourceWebURL
  $TargetWeb = Get-SPWeb $TargetWebURL
  #if permissions are Inherited in the target, Break it!
   #Reset the Inheritence in Target Web
   #Copy permissions from Source to Target Web
     $SourceWeb.RoleAssignments | foreach-object {
    Write-Host "Permissions copied from Source Site to the Target!" -f Green
 catch {
   Write-Host $_.Exception.Message -ForegroundColor Red
 finally {
  #Reset the Error Action to Default
  $ErrorActionPreference = "Continue"

#Call the function to copy Web permissions 
Copy-SitePermissions -SourceWebURL "" -TargetWebURL "" 


  1. Hi,

    I am getting the following error on using the above code: Exception calling "Add" with "1" argument(s): "0x80070003". please let me know, how to fix this?

  2. You check Inherit permission Source Web. If Inherit then you stop inheriting permission. Hope help you!

  3. Hi, does this also work if lists have broken inheritance and custom permissions?

    1. It just copies permissions at web level! Not Lists level.

  4. Hi Does this also copy the SharePoint Groups from the source or it just copies users and their permissions?

    E.g Managers .... Full Control or Name.Surname ... Full Control?

    1. This script copies all users and groups - that has permissions to source web to the target!

  5. Hi,

    Is there any script available for SharePoint Online to perform this activity.


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