---
sourceDocument: Brazil IT Operations Management
sourceDocumentLink: https://www.servicenow.com/docs/r/it-operations-management

 Release :

    - brazil

ft:locale :

    - en-US

ft:publication_title :

    - Brazil IT Operations Management

ft:clusterId :

    - itom

bundleId :

    - itom

workflow :

    - Technology


---

# Header properties detection

# Header properties detection in Health Log Analytics {#ariaid-title1}

Release version: Brazil  
Updated September 10, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
Automatic header properties detection in Health Log Analytics separates the transport header from the inner log message and forwards only the inner log message to the source type structure. The inner message contains the actual log data, not the shipping
information.

The Health Log Analytics application supports header properties detection for Fluentd, Beats, and Syslog (RFC 3164, RFC 5424).

Starting with Version 33.0.27 - August 2024, the system also supports header properties detection for logs that follow the OpenTelemetry logs data model and semantic conventions. For more information, see
the [OpenTelemetry Logs Data Model documentation](https://opentelemetry.io/docs/specs/otel/logs/data-model/).
You can disable header properties detection for a data input. In this case, the Health Log Analytics AI Engine stops extracting properties from the header. Forwarding the complete raw message to the source type structure can be useful in the following situations:  
* The inner log message lacks information for parsing, such as timestamp and severity.
* The header contains information needed for structuring the log data.
* The data input forwards the logs fully parsed.
{#hla-header-detection__ul_yqt_2bk_jnb}

For the procedure to disable header properties detection, see [Map raw log data manually](https://www.servicenow.com/docs/RTFq766xdWMGqMdEUABgcA "Mapping raw log data that streams into your ServiceNow instance determines how Health Log Analytics processes the data. If HLA doesn't discover properties automatically, you can map data input sources manually.").