# DXtrade FIX reject reason: CONDITIONALLY_REQUIRED_FIELD_MISSING

Independent and unofficial. Not affiliated with or endorsed by any broker or platform named here. Educational only: nothing here is advice, and nothing here recommends a broker or a trade.

This is the markdown version of https://openbrokerapi.com/errors/dxtrade/fix-required-field-missing, written from the same records as that page.

Risk warning: CFDs and spread bets are complex instruments and come with a high risk of losing money rapidly due to leverage. You can lose money on these products, and each provider publishes its own loss figure under FCA rules. You should consider whether you understand how they work and whether you can afford to take the high risk of losing your money. Automated and API trading can amplify losses through bugs, connectivity failures and runaway orders.

The error, as text you can copy:

```
CONDITIONALLY_REQUIRED_FIELD_MISSING
```

- Kind: FIX reject reason
- Where you meet it: In a reject message on the FIX session, not in an HTTP reply
- API: [DXtrade APIs](https://openbrokerapi.com/platforms/dxtrade)
- Status: verified. Source: [demo.dx.trade](https://demo.dx.trade/developers/#/DXtrade-FIX-Trading-API), checked 2026-10-09.

## What does CONDITIONALLY_REQUIRED_FIELD_MISSING mean on the DXtrade API?

In the DXtrade FIX Trading API, CONDITIONALLY_REQUIRED_FIELD_MISSING is an error code carried at the start of the Text (58) field of a business reject, in the form Error_Code:Descriptive_Text. Party information is expected in the message but was not provided.

## How do I fix CONDITIONALLY_REQUIRED_FIELD_MISSING?

Include the party information in the message.

## More on the DXtrade API

- [All DXtrade API error codes](https://openbrokerapi.com/errors/dxtrade)
- [DXtrade API error codes](https://openbrokerapi.com/errors/dxtrade): 79 decoded, each with what it means, and the fix where the source gives one.
- [DXtrade API endpoints](https://openbrokerapi.com/platforms/dxtrade/endpoints): 21 documented, each with its method, path, parameters and source.
- [DXtrade messages](https://openbrokerapi.com/platforms/dxtrade/messages): 8 documented, each with its fields and source.
- [DXtrade API page](https://openbrokerapi.com/platforms/dxtrade): The full record: access, authentication, limits and the source for each.

## Licence and how to cite

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Cite as: DXtrade FIX reject reason: CONDITIONALLY_REQUIRED_FIELD_MISSING. Broker API Hub, https://openbrokerapi.com/errors/dxtrade/fix-required-field-missing, newest check 2026-10-09.

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.