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# Reference documentation (telemetry)

> Learn section Development > Programming in the AL language > Instrumenting with telemetry > Reference documentation (telemetry): 2 Microsoft Learn pages. Index of what Learn documents here, linked to Learn.

Path: [Development](../../../development.md) > [Programming in the AL language](../../programming-in-the-al-language.md) > [Instrumenting with telemetry](../instrumenting-with-telemetry.md) > Reference documentation (telemetry) · tier official · system platform · no narrative yet

## Learn pages

- [Session.LogMessage(Text, Text, Verbosity, DataClassification, TelemetryScope, Dictionary of [Text, Text]) Method](https://learn.microsoft.com/dynamics365/business-central/dev-itpro/developer/methods-auto/session/session-logmessage-string-string-verbosity-dataclassification-telemetryscope-dictionary[text,text]-method): Logs a trace message to a telemetry account.
- [Session.LogMessage(Text, Text, Verbosity, DataClassification, TelemetryScope, Text, Text [, Text] [, Text]) Method](https://learn.microsoft.com/dynamics365/business-central/dev-itpro/developer/methods-auto/session/session-logmessage-string-string-verbosity-dataclassification-telemetryscope-string-string-string-string-method): Logs a trace message to a telemetry account.

## Videos and posts

Linked by a Haiku matcher with a grounding quote from the item's summary (link/topics.ts); machine-generated.

- [Dynamics 365 Business Central Online Wait Statistics in Telemetry: the AI boost](../../../../../posts/duiliotacconi-com/1925.md) (community post): "Wait Statistics page in Business Central Online emits telemetry showing grouped wait categories"
- [Use sqlServerSessionId to spot on blocking sessions in Dynamics 365 Business Central 2026 Wave 1](../../../../../posts/duiliotacconi-com/2074.md) (community post): "sqlServerSessionId to Long Running Queries telemetry and other signals that carry a SQL statement"

Source: Microsoft Learn (CC BY 4.0). Descriptions are Learn's own.