Important Change - Changes to sub-account transfer across currencies (mid/late June 2024)

Cross currency sub-account transfers during FX non-trading hours will no longer be supported starting mid/end June 2024 (gradual rollout). We are making this change to minimise the risk contributing to FX conversion errors. Inter-account transfers between currency accounts in the same currency (i.e. from a USD to a USD account) will still be possible. 

You can find details on FX trading hours here - Forex trading hours (except AED, ILS, THB, RON) are 5.5 days per week, 24 hours a day, with the exception of the four currencies mentioned before. The cross-currency account transfer limitations will mainly apply on weekends and special holidays. 

This change is not related directly to OpenAPI, and there will be no code changes required to use the impacted endpoints going forward. If a sub-account transfer is requested via OpenAPI during the time where Forex markets are closed, the ErrorCode "CrossCurrencyTransferNotAllowedWhenMarketIsClosed" will be returned.

The endpoints impacted by this is:

Potentially Breaking - Removal of SignalR based streaming (from August 2024)

Since the introduction of our Websocket based streaming solution back in 2018, we have slowly been removing all references to our previous SignalR based streaming protocol. But until now, the SignalR functionality has stayed active for those older apps still using it. This will change from August 2024 where we will remove this functionality, which will result in these apps failing to establish streaming connections.

Very few apps are still utilizing SignalR, so we don't expect this will have a big impact, but if your app still does, please migrate to Websocket streaming before August 2024. The guide to Websocket streaming can be found here:

Notice for OpenAPI for Excel add-in users: This impacts anything except the latest version of our OpenAPI for Excel, so please make sure to download the latest version here:


The list of completed changes can be found here