EPiServer Admin Import data – Fixing the Request timed out exception

If you are importing a big file of data into EPiServer through the admin import data feature, you might get this exception:

Exception Details: System.Web.HttpException: Request timed out.

ASP.NET has a timeout of 120 seconds by default, you can increase this setting for the admin section only using the following setting.

Add this directly under the location path admin / system.web element:

<httpRuntime executionTimeout="999999" maxRequestLength="2097151" />

E.g. in web.config:

<location path="epi/CMS/admin">
      <httpRuntime executionTimeout="999999" maxRequestLength="2097151" /> 
        <allow roles="WebAdmins, Administrators" />
        <deny users="*" />

Source: https://support.microsoft.com/en-ca/help/925083/error-request-timed-out-when-you-try-to-upload-a-large-file-to-a-docum

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