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Support Article

When go to 'Other Actions and select Refresh 404 error appears



When a user goes to "Actions" or "Other Actions" and selects "Refresh", the section is filled with a 404 error instead of the section refreshing. Using the browser's refresh button does not create this error.

Error Messages

Steps to Reproduce

  1. Click Actions or Other Actions.
  2. Click Refresh.

Root Cause

A defect or configuration issue in the operating environment; There is a IIS webserver between browser and Pega.Http request from browser is not reaching Pega and it is blocked at the IIS server level.


Make the following change to the operating environment: 

IIS webserver has maximum length restriction for the HTTP URL query string. removing this limitation addresses the problem. There is a window's registry setting for this '

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\HTTP\Parameters] "UrlSegmentMaxLength"=dword:00000400

Published January 31, 2016 - Updated October 8, 2020

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