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      Deny Add and Customize pages within your SharePoint 2019 site

      Please follow this article if you are seeing a Add and Customize permissions required dialog window after installing KWIZ Apps

      You may see this dialog window after installing KWIZ Apps in your SharePoint 2019 environment.


      1. Login to your SharePoint Farm SharePoint 2019 On-Premise
      2. Open SharePoint 2019 Management Shell as administrator
      3. Execute the following PowerShell command:

              (Get-SPSite -Identity "https://your-host/sites/modern-site").DenyPermissionsMask =           
              [Microsoft.SharePoint.SPBasePermissions]::EmptyMask