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sharepoint-onlinesharepoint-designer

SharePoint Online (Office 365) - SharePoint Designer not allowing to save file

I installed SharePoint Designer 2013 and opened a site from our company's Office 365 SharePoint Online. When I try to make any changes in seattle.master (or any other html file) and save, it is showing following error message:

Server error: Access denied.

I setup my own user with full control (owner), so it seems to have enough rights.

Am I missing something?

Solution

  • Try enabling custom script on the site where you are trying to save the file.

    You can do this using SPO Shell 

    Set-SPOSite https://contoso.sharepoint.com -DenyAddAndCustomizePages 0

    Had this issue a couple days ago and this seemed to fix it.