SharePoint Designer 404 error

Hi,

I understand that you cannot open the site in SharePoint designer. How do you access the site? Using internal URL or external URL?

Make sure that you are accessing the site using internal URL. If this doesn’t fix this issue, you can repair SharePoint designer 2010 and Office 2010. Then restart the server to check whether it fixes this issue.

Thanks,

Entan Ming

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Entan Ming

TechNet Community Support