Observability Edot Dotnet Migrate

---
name: observability-edot-dotnet-migrate
description: >
  Migrate a .NET application from the classic Elastic APM .NET agent to the EDOT .NET
  SDK. Use when switching from Elastic.Apm.* packages to Elastic.OpenTelemetry.
metadata:
  author: elastic
  version: 0.1.0
---

# EDOT .NET Migration

Read the migration guide before making changes:

- [Migration guide](https://www.elastic.co/docs/reference/opentelemetry/edot-sdks/dotnet/migration)
- [EDOT .NET setup](https://www.elastic.co/docs/reference/opentelemetry/edot-sdks/dotnet/setup)
- [EDOT .NET configuration](https://www.elastic.co/docs/reference/opentelemetry/edot-sdks/dotnet/configuration)

## Guidelines

1. Remove ALL classic APM references: `Elastic.Apm.*` NuGet packages (including `Elastic.Apm.NetCoreAll`),
   `UseAllElasticApm()` / `AddAllElasticApm()` calls, the `ElasticApm` section from `appsettings.json`, and all
   `ELASTIC_APM_*` env vars
1. Add NuGet packages: `Elastic.OpenTelemetry` and `OpenTelemetry.Instrumentation.AspNetCore` (for ASP.NET Core apps)
1. Register EDOT in startup: call `builder.AddElasticOpenTelemetry()` on the `IHostApplicationBuilder` (in `Program.cs`… install to load the full skill