Troubleshooting update preview problems in Experience Manager

This task explains how to troubleshoot problems in Experience Manager that you see when trying to update preview.

Procedure

  1. Check for the following error in the Preview Service logs:
    ODataWebHandler - Validation exception while updating an entity.
    com.sdl.web.content.odata.exceptions.ODataValidationException: 
    The input data was invalid: 
    stringValue must be a non-empty string or any of the other values should be filled in.
  2. If you see this error, check if the URL for which you are trying to do an update preview matches an excluded path in the ExcludedPaths section of the cd_ambient_conf.xml configuration file. If the URL matches one of the paths configured there, filtering is excluded for this URL, which is why update preview does not work.