Unknown parameter: 'conversation'

[verdie-g]

#pragma warning disable OPENAI001

using System.ClientModel;
using Azure.AI.OpenAI;
using Microsoft.Agents.AI;
using Microsoft.Agents.AI.DevUI;
using Microsoft.Extensions.AI;

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddSingleton<AIAgent>(sp =>
{
    return new AzureOpenAIClient(new Uri(Environment.GetEnvironmentVariable("AZURE_OPENAI_ENDPOINT")!),
            new ApiKeyCredential(Environment.GetEnvironmentVariable("AZURE_OPENAI_KEY")!))
        .GetOpenAIResponseClient("gpt-4.1-mini")
        .AsIChatClient()
        .CreateAIAgent(name: "Test");
});
builder.Services.AddDevUI();
builder.Services.AddOpenAIResponses();
builder.Services.AddOpenAIConversations();

var app = builder.Build();

app.MapOpenAIResponses();
app.MapOpenAIConversations();
app.MapDevUI();

app.Run();

In the /devui, any message throws

HTTP 400 (invalidrequesterror: unknown_parameter)

Unknown parameter: 'conversation'. (Code: execution_error)

I understand that Azure Open AI doesn't support the conversation parameter? How can I use the devui?

[verdie-g]

@stephentoub could 66a399e help by any chance?

[stephentoub]

Can you provide more details? Where is that error coming from?

[verdie-g]

The request body is

{"metadata":{"entity_id":"test"},"input":[{"type":"message","role":"user","content":[{"text":"Hello","type":"input_text"}]}],"stream":true,"conversation":"conv_QNdBFoANJbPJipDf2GWrPos9zQ4RTd7iyEm5DOfAfXNkWTbx"}

and the response

{"type":"response.failed","response":{"id":"resp_puVNnInoDzK9sLxoaGQtoa6Nf3S2ytw4KCm8WIWFR1I0I2Tg","object":"response","created_at":1764753434,"status":"failed","error":{"code":"execution_error","message":"HTTP 400 (invalid_request_error: unknown_parameter)\n\nUnknown parameter: \u0027conversation\u0027."},"output":[],"usage":{"input_tokens":0,"input_tokens_details":{"cached_tokens":0},"output_tokens":0,"output_tokens_details":{"reasoning_tokens":0},"total_tokens":0},"parallel_tool_calls":true,"tools":[],"temperature":1,"top_p":1,"metadata":{"entity_id":"test"},"conversation":"conv_QNdBFoANJbPJipDf2GWrPos9zQ4RTd7iyEm5DOfAfXNkWTbx","store":true},"sequence_number":3}

[stephentoub]

@ReubenBond, @DeagleGross, this seems like a bug in the hosting of an agent. If the host is exposing responses / conversions to the client, the client will be sending back conversation id's, but those are only relevant to the host, not to whatever arbitrary IChatClient might be backing the agent. It shouldn't be forwarding the client's conversation Id.

[DeagleGross]

I agree, created #2632 to fix that.

[DeagleGross]

Merged, so should be fixed without any workarounds in next version of Microsoft.Agents.AI.Hosting.OpenAI package