出典確認済みリサーチ: Bybit VS OKX Amend

Decision Matrix

Source Map

• Bybit API Documentation: Amend Order (bybit-amend-order)
• Bybit API Documentation: Websocket Trade Guideline (bybit-websocket-trade)
• OKX API Documentation: OKX API guide: order operations (okx-order-operations-guide)
• OKX API Documentation: OKX API guide overview (okx-api-overview)

Control Notes

1. Acknowledgement meaning

Acknowledgement meaning is the decision point where public documentation must become an operating rule. In this package, it means an API acknowledgement is a transport or acceptance event, not a final order-state proof. The practical action is to store acknowledgement separately from the later order update. The unresolved edge is whether a user interface collapses the two events into one status label, so the article keeps that edge explicit instead of turning it into a reward claim, licensing claim, approval claim, recovery guarantee, price implication, settlement guarantee or platform ranking.

2. Final state source

Final state source is the decision point where public documentation must become an operating rule. In this package, it means the websocket order channel or order-status lookup is the state authority after amend or cancel. The practical action is to wait for the final order event before reusing balances or replacing exposure. The unresolved edge is which event wins when REST response and websocket event arrive out of order, so the article keeps that edge explicit instead of turning it into a reward claim, licensing claim, approval claim, recovery guarantee, price implication, settlement guarantee or platform ranking.

The operating test is also narrow. A public page can prove public wording.

3. Request identity

Request identity is the decision point where public documentation must become an operating rule. In this package, it means client IDs, request IDs and order IDs determine whether retries are safe. The practical action is to persist the submitted identifier, venue order ID and retry attempt together. The unresolved edge is how the venue handles duplicate client identifiers after reconnect, so the article keeps that edge explicit instead of turning it into a reward claim, licensing claim, approval claim, recovery guarantee, price implication, settlement guarantee or platform ranking.

The operating test is also narrow. A public page can prove public wording.

4. Timeout boundary

Timeout boundary is the decision point where public documentation must become an operating rule. In this package, it means request expiry and receive-window rules stop stale requests from becoming surprise actions. The practical action is to set a local stop rule before resubmitting after latency or clock drift. The unresolved edge is whether the server accepted the first request after the client timed out, so the article keeps that edge explicit instead of turning it into a reward claim, licensing claim, approval claim, recovery guarantee, price implication, settlement guarantee or platform ranking.

The operating test is also narrow. A public page can prove public wording.

5. Partial fill race

Partial fill race is the decision point where public documentation must become an operating rule. In this package, it means an order can be partially filled before an amend or cancel result is known. The practical action is to reconcile fills and remaining quantity before sending the next instruction. The unresolved edge is whether queue priority or residual quantity changed during the race, so the article keeps that edge explicit instead of turning it into a reward claim, licensing claim, approval claim, recovery guarantee, price implication, settlement guarantee or platform ranking.

The operating test is also narrow. A public page can prove public wording.

6. Rate-limit surface

Rate-limit surface is the decision point where public documentation must become an operating rule. In this package, it means single, batch, instrument and sub-account limits can fail independently. The practical action is to track the limit bucket used by each amend or cancel route. The unresolved edge is whether a failed batch item should trigger a local cancel-all safeguard, so the article keeps that edge explicit instead of turning it into a reward claim, licensing claim, approval claim, recovery guarantee, price implication, settlement guarantee or platform ranking.

The operating test is also narrow. A public page can prove public wording.

Known Unknowns

• whether a user interface collapses the two events into one status label
• which event wins when REST response and websocket event arrive out of order
• how the venue handles duplicate client identifiers after reconnect
• whether the server accepted the first request after the client timed out
• whether queue priority or residual quantity changed during the race
• whether a failed batch item should trigger a local cancel-all safeguard

Practical Takeaway

Bybit and OKX both treat order amendment or cancellation as an asynchronous control problem: an accepted request is not the same as final order state. Bybit states that amend-order acknowledgement means the request was accepted and the user should use websocket order status to confirm the result. OKX similarly says successful amend or cancel response means acceptance, while final outcome must be read from the websocket orders channel, with request expiry, cxlOnFail and per-instrument limits shaping the operating record. The decision outcome is to compare acknowledgement, final state, request ID, timeout, rate limit, partial fill and reconciliation rules before designing an automated trading control. The article stops at the evidence boundary. It helps the reader decide what to inspect next without converting public documentation into a promise that a private account, wallet, callback, policy framework, settlement route or liquidity position will work under every future condition.