Page History

Background

ExecutionAcknowledgement/ 35=BN is commonly supported by most ECNs to ACK or NACK a client's ExecutionReport and is considered the end of the trade life cycle in the maker workflow, where Whisperer clients are the market makers.

However, Integral is an anomaly and does not send anExecutionAcknowledgement to notify the client that their ExecutionReport is Accepted or Rejected.

To normalise the order lifecycle in the maker workflow, MarketFactory will introduce a synthetic ExecutionAcknowledgement in the maker gateways, if the venue API does not support the message.

Affected Venues

• integral_esp_maker
• integral_rfs_maker

Change

In order to address a normalisation gap in the maker workflow order lifecycle, MarketFactory will introduce a synthetic ExecutionAcknowledgement in maker gateways, in the absence of a venue ACK in response to our client's ExecutionReport, MarketFactory will introduce a synthetic ExecutionAcknowledgement in maker gateways.

Timeline

• 25 Jul 2025 - UAT - MarketFactory will introduce the synthetic ExecutionAcknowledgement for clients to test the affected venues in UAT.
• 15 Aug 2025 - PROD - Whisperer release 2025.08.XX.WE to expose the synthetic ExecutionAcknowledgement change in PROD.