# Custom Azure Functions triggers


If the trigger function must be customized, you must disable generation of the trigger function by removing the `NServiceBusTriggerFunction` attribute. A custom trigger function can then be added manually to the project:

<!-- snippet: custom-trigger-definition -->

```cs
class CustomTriggerDefinition(IFunctionEndpoint functionEndpoint)
{
    [Function("MyCustomTrigger")]
    public async Task Run(
        [ServiceBusTrigger("MyFunctionsEndpoint")]
        ServiceBusReceivedMessage message, ServiceBusMessageActions messageActions, FunctionContext context,
        CancellationToken cancellationToken = default)
    {
        await functionEndpoint.Process(message, messageActions, context, cancellationToken);
    }
}

public class Program
{
    public static async Task Main(string[] args)
    {
        var builder = FunctionsApplication.CreateBuilder(args);

        builder.AddNServiceBus("MyFunctionsEndpoint");

        var host = builder.Build();

        await host.RunAsync();
    }
}
```

<!-- endsnippet -->

The endpoint name in `UseNServiceBus` must match the queue name in the function, as illustrated above.