# Interactive Brokers API error: Order reply message

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This is the markdown version of https://openbrokerapi.com/errors/ibkr/web-api-200-order-reply-message, written from the same records as that page.

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The error, as text you can copy:

```
Order reply message
```

- Kind: API error code
- HTTP status: 200
- API: [Interactive Brokers](https://openbrokerapi.com/brokers/ibkr)
- Status: verified. Source: [interactivebrokers.com](https://www.interactivebrokers.com/docs/web-api/trading/orders/order-reply-messages), checked 2026-10-12.

## What does Order reply message mean on the Interactive Brokers API?

On the Web API, an order submission can come back with status 200 OK and, instead of an acknowledgement, an object holding an id, a message, isSuppressed, messageIds and, on the error details page, messageOptions. Interactive Brokers calls this an order reply message and says it does not mean the order was rejected: the vendor wants some element of the order confirmed before it goes to work. The messageIds values, such as o163, name the kind of message.

## How do I fix Order reply message?

The vendor's page says to confirm by sending POST /iserver/reply/{id} with the body {"confirmed":true}, and that further reply messages may follow and must also be answered before the order is submitted. The message kinds can be suppressed for the rest of the brokerage session with the suppression endpoint.

## More on the Interactive Brokers API

- [All Interactive Brokers API error codes](https://openbrokerapi.com/errors/ibkr)
- [Interactive Brokers API quickstart](https://openbrokerapi.com/brokers/ibkr/quickstart): From credentials to a first call on a demo account, step by step.
- [Interactive Brokers API error codes](https://openbrokerapi.com/errors/ibkr): 511 decoded, each with what it means, and the fix where the source gives one.
- [Interactive Brokers API endpoints](https://openbrokerapi.com/brokers/ibkr/endpoints): 23 documented, each with its method, path, parameters and source.
- [Interactive Brokers API page](https://openbrokerapi.com/brokers/ibkr): The full record: access, authentication, limits and the source for each.
- [Get your Interactive Brokers trade history into a spreadsheet](https://openbrokerapi.com/guides/ibkr-trade-history): Guide
- [IBKR API without TWS: headless IB Gateway options](https://openbrokerapi.com/guides/ibkr-headless-gateway): Guide
- [The three Interactive Brokers REST front doors compared](https://openbrokerapi.com/guides/ibkr-rest-front-doors): Guide
- [Interactive Brokers MCP servers, compared](https://openbrokerapi.com/guides/interactive-brokers-mcp-servers): Guide

## Licence and how to cite

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Cite as: Interactive Brokers API error: Order reply message. Broker API Hub, https://openbrokerapi.com/errors/ibkr/web-api-200-order-reply-message, newest check 2026-10-12.

Where you rely on a single figure, cite the source and the checked date printed beside it as well. Where this page and a broker's own documentation differ, the documentation wins.