Device detection module cannot be disabled completely when EXM module is installed

  • Disabling the device detection module (by adding .disabled extension to the /App_Config/Include/CES/Sitecore.CES.DeviceDetection.config file name) causes the following error to be logged every few seconds in each aggregation process in EXM.

    ERROR [Experience Analytics]: Device detection is disabled

    The issue occurs because once EXM is installed, a new dimension is added for aggregation in the following files:

    • Sitecore.EmailExperience.ExperienceAnalytics.Reduce.config
    • Sitecore.EmailExperience.ExperienceAnalytics.Aggregation.config

    This dimension executes the Device Detection functionalities regardless of Device Detection being enabled or not. As a result, the exception mentioned previously is thrown.

Applies to:

CMS 8.2 Initial Release - 9.0 Initial Release

CMS 9.0 Update-1

January 20, 2020
January 22, 2020

Reference number:



  • EXM