How to Copy Folder Permissions from Source to Target in SharePoint

Discover how to effectively copy folder permissions in SharePoint from one site to another, ensuring that user access rights are seamlessly transferred.
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This video is based on the question https://stackoverflow.com/q/77781658/ asked by the user 'Invop' ( https://stackoverflow.com/u/22609786/ ) and on the answer https://stackoverflow.com/a/77782582/ provided by the user 'Invop' ( https://stackoverflow.com/u/22609786/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Introduction

Transferring folder structures between SharePoint sites is a common task for many developers. However, the challenge arises when you need to ensure that the folder permissions associated with those structures are properly copied over as well.

In this guide, we will guide you through the process of copying folder permissions from a source site to a target site, focusing on the scenario where group names are identical in both locations. Leveraging the PnP Framework, we will provide a hands-on solution with code examples to streamline your implementation.

The Problem

Imagine you have a folder structure in one SharePoint site that you want to duplicate in another. You also have groups like "PTO," "IK," and "ITN" that control access to these folders. The challenge is to ensure that the permissions assigned to these groups in the source site are mirrored in the target site.

Solution Overview

The solution involves two key functions:

CopyFolderPermissions: This function handles the permissions copying process from the source folder to the target folder.

CopyFolder: This function duplicates the folder structure and contents recursively, while also invoking the CopyFolderPermissions function to transfer the access rights.

Step-by-Step Guide to Copy Folder Permissions

Here’s how to implement the solution using C# and the PnP Framework:

Step 1: Establish Client Contexts

Begin by establishing client contexts for both the source and target sites.

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Incorporate this into your method:

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Step 2: Get and Validate the Source Folder

Check if the source folder exists. If it does, proceed to ensure that the target library is ready:

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Step 3: Copy Folder and Permissions

Define the CopyFolder method to handle the actual copying process, including permissions:

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Step 4: Implement CopyFolderPermissions

This function iterates through the role assignments of the source folder and applies them to the target folder:

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Step 5: Recursively Copy Subfolders

Ensure that the copying process is recursive by implementing the logic to handle subfolders correctly.

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Conclusion

By following this structured step-by-step approach, you can effectively copy not only the folder structure but also the permissions associated with each folder from one SharePoint site to another. This ensures a seamless transition when managing documents across different environments.

Feel free to modify the code as per your requirements, and do not hesitate to share your thoughts or questions in the comments below!

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