---
title: APM serilog enricher
description: This enricher adds the transaction id and trace id to every Serilog log message that is created during a transaction. Add a reference to the Elastic.Apm.SerilogEnricher...
url: https://www.elastic.co/docs/reference/ecs/logging/dotnet/apm-serilog-enricher
products:
  - ECS Logging
  - ECS Logging .NET
applies_to:
  - Elastic Cloud Serverless: Generally available
  - Elastic Stack: Generally available
---

# APM serilog enricher
This enricher adds the transaction id and trace id to every Serilog log message that is created during a transaction.

## Installation

Add a reference to the [Elastic.Apm.SerilogEnricher](http://nuget.org/packages/Elastic.Apm.SerilogEnricher) package:
```xml
<PackageReference Include="Elastic.Apm.SerilogEnricher" Version="8.6.0" />
```


## Usage

```csharp
var logger = new LoggerConfiguration()
   .Enrich.WithElasticApmCorrelationInfo()
   .WriteTo.Console(outputTemplate: "[{ElasticApmTraceId} {ElasticApmTransactionId} {ElasticApmSpanId} {Message:lj} {NewLine}{Exception}")
   .CreateLogger();
```


## Properties

In the code snippet above `Enrich.WithElasticApmCorrelationInfo()` enables the enricher from this project, which will set 3 properties for log lines that are created during a transaction:
- `ElasticApmTraceId`
- `ElasticApmTransactionId`
- `ElasticApmSpanId`

These two properties are printed to the Console using the `outputTemplate` parameter, of course they can be used with any sink, you could consider using a filesystem sink and [Elastic Filebeat](https://www.elastic.co/downloads/beats/filebeat) for durable and reliable ingestion. This enricher is also compatible with the [Elastic.CommonSchema.Serilog](https://www.nuget.org/packages/Elastic.CommonSchema.Serilog) package.

## Prerequisite

The prerequisite for this to work is a configured [Elastic APM Agent](https://github.com/elastic/apm-agent-dotnet). If the agent is not configured the enricher won’t add anything to the logs.