Getting "The form submission cannot be processed because it exceeded the maximum length allowed by the web administrator. Please resubmit the form with less data" error in SharePoint 2013 when trying to upload a file?
Root cause: By default, SharePoint 2013 web applications have limitation on maximum upload size for documents. If you try to upload a file bigger than 250 MB, you will get this error message.
You need to increase maximum upload size in SharePoint 2013 central administration site:
- Go to Central Administration >> Application Management >> Select required web application
- Click on "Web Application General Settings"
- Change the "Maximum Upload Size" value
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