Settlement ID

Overview

A settlement ID is a unique identifier assigned to a settlement, settlement cycle, batch, position, or instruction. It allows related transactions, entries, files, messages, and confirmations to be grouped and traced. Different providers may use their own references for the same commercial event.

One identifier may represent an entire cycle, while another identifies a participant position or a single settlement transfer . Where an external party changes or omits the reference, a separate mapping record should preserve both identifiers. The operational record should capture issuing namespace, internal identifier, external reference, environment, creation time, mapping history, obligation, participant, and gross or net position for Settlement ID, including the handoff to Settlement . The implementation should identify the obligation, participants, settlement asset, accounts or addresses, value date, liquidity source, posting sequence, and evidence of finality.

Settlement ID should remain distinct from Settlement and Settlement Cycle, because each can represent a different stage, record, control, or financial outcome. Reconciliation uses settlement IDs to connect internal obligations with files, external instructions, ledger entries, fees, and confirmations.

For Settlement ID, the failure model should include incorrect obligations, liquidity shortfalls, participant default, wrong settlement assets, premature finality, and unreconciled movements. Important failure modes include insufficient liquidity, duplicate instructions, wrong settlement assets, delayed delivery, participant default, unmatched evidence, and premature claims of finality.

The ID should be immutable, unique within its stated namespace, and stored with provider, environment, date, participant, currency or asset, and status. It should not contain sensitive account data or be regenerated when a status changes.