FIX Drop Copy
Drop copy provides an account-level execution report stream for downstream OMS, portfolio, compliance, and risk systems.
Purpose
Use drop copy when you need a separate read-only feed of account activity:
- order acknowledgements
- fills
- cancels
- rejects
- terminal order state
- fee and liquidity role
Message model
Drop copy primarily emits ExecutionReport (35=8). Clients must handle repeated
reports idempotently because sequence recovery can resend already processed
messages.
Session permissions
Drop copy credentials are read-only by default. They cannot place, cancel, or amend orders unless explicitly combined with an order-entry credential.
Recovery
If the drop-copy session falls behind:
- Request resend for the missing FIX sequence range.
- Reconcile account state through the HTTP API.
- Resume live processing after sequence continuity is restored.