How to use/implement "Send an HTTP Request to SharePoint" in Power Automate to modify existing Sharing Link/s of a file/folder in SharePoint?

Question

Dear Microsoft Community,

I’m reaching out to seek guidance on using the "Send an HTTP Request to SharePoint" action in Power Automate to modify existing sharing links for files/folders in SharePoint.

For example below Current Scenario:

• I successfully shared a folder (e.g., "TEST") with an external email address (my personal email address) using "Send an HTTP Request to SharePoint", first granting EDIT access.
• When I repeated the action to grant VIEW access, it created a new sharing link instead of modifying the existing one.

What I'd like to Achieve:

1. Modify/Change permissions from 'Can Edit' to 'Can View' or 'Can’t Download' of the same sharing link
2. Add/remove external users from the same sharing link
3. Delete/revoke the existing sharing link entirely

Currently, these actions can be done manually via SharePoint’s "Manage Access" settings (see screenshot below for reference).

Could you please advise / guide me on how to achieve this programmatically via Power Automate? Any insights, sample HTTP requests, or documentation references would be greatly appreciated

Thank you so much in advance

Respectfully,

MASARU Q. NAKAEGAWA

Answer 1

Hi Masaru,

Thank you for reaching out to Microsoft Community Support

I'm sorry that you're having a problem, and from the situation you've encountered, we deeply understand the inconvenience caused and apologize for it. 

According to its description, it looks like you are a problem with the Microsoft Power Automate flow. 

If my understanding is correct, as our category focuses on Office 365 products, the problem you encountered is to implement HTTP request via Power Automate, to ensure that you get professional help and avoid incorrect information from our side, we suggest you post on the Microsoft Power Automate Community for expert assistance. This is a specific channel related to Power Automate. The reason I ask you to post a new topic is that in the Answers forum, we have limited resources and very little knowledge about Power Automate, and in Microsoft Power Platform Community Forum Thread, you'll get the most qualified group of respondents, and other partners who read the forums regularly can share their knowledge or learn from your interaction. 

Apologies for redirecting you to a different community as the members of the posted category focus on users with Microsoft 365 concern and have limited knowledge about Power Automate, so to get a quick and better assistance, we redirect you in the correct way. 

I appreciate your patience and understanding and thank you for your time and cooperation. 

Best regards,

Austin H - MSFT | Microsoft Community Support Specialist