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Dynamics 365 Community / Forums / Small and medium business | Business Central, N... / Custom Telemetry not w...
Small and medium business | Business Central, N...
Suggested Answer

Custom Telemetry not working properly since latest update

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Posted on by OscarFernandez 45
Hi
 
Since the Platform update 24.0.25684.0, the custom telemetry is not storing the values sent in the CustomDimensions list, I can see the message and the eventid but not the ones in the customDimensions list.
Has it changed the way we must send this information or is it some kind of bug?
 
regards
Categories:
Dynamics 365 Business Central
I have the same question (0)
  • Khushbu Rajvi. Profile Picture
    Khushbu Rajvi. 22,435 Super User 2026 Season 1 on at
  • Suggested answer
    DAnny3211 Profile Picture
    DAnny3211 11,421 Super User 2026 Season 1 on at

     

    Hi Oscar,

    Thanks for raising this — you're not alone in noticing changes in custom telemetry behavior after the Platform update 24.0.25684.0.

    Here's what you can check:

    1. Telemetry Schema Changes:

      • Microsoft occasionally updates the Application Insights schema or how customDimensions are handled.
      • Review the latest telemetry documentation to confirm if any changes were introduced in this platform version.

    2. Payload Format:

      • Ensure that your telemetry payload still conforms to the expected structure:
    Telemetry.Trace('YourEventId', 'Your message', customDimensions);
      • The customDimensions dictionary must contain string key-value pairs only.

    2. Instrumentation Key vs. Connection String:

      • If you recently switched from using an Instrumentation Key to a Connection String, ensure the configuration is still valid and supports custom dimensions.

    3. Application Insights Configuration:

      • Check if your Application Insights resource has any filters or sampling rules that might be excluding customDimensions.

    4. Known Issues or Bugs:

      • If everything appears correct, this could be a regression or bug introduced in the platform update. Consider opening a support ticket with Microsoft or checking the Business Central release notes for any known issues.

    Let me know if you'd like help reviewing your telemetry code or setting up a test trace!

    Please verify if this response was helpful.

    Best regards!

  • Suggested answer
    YUN ZHU Profile Picture
    YUN ZHU 101,202 Super User 2026 Season 1 on at
    Hi, As far as I know this is a standard issue and has been fixed in 24.0.25791. You can download the latest CU and try again.
    More details:
     
    Thanks
    ZHU

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