Unhandled Exception: Microsoft.SharePoint.SPException: The form submission cannot be processed because it exceeded the maximum length allowed by the Web administrator. Please resubmit the form with less data.

Hi,

When one of our users tried uploading a picture of size somewhere around 3 mb in the picture library, he received the above mentioned error. Initial solution that we found in the kb article was to increase the httpRuntime within our web site.

<httpRuntime maxRequestLength=”51200” />

maxRequestLength –

Optional Int32 attribute. Specifies the limit for the input stream buffering threshold, in KB. This limit can be used to prevent denial of service attacks that are caused, for example, by users posting large files to the server. The default is 4096 KB. If the threshold is exceeded, a ConfigurationErrorsException is thrown.

But as we can see it is already set to somewhere around 50mb so that shouldn’t be the problem.

Thankfully the solution for this was to open central administration site

Central Administration > Application Management > Web Application General Settings

There change the

Maximum Upload Size which was set to 2 mb to
desired value.

Bye