TS ISO 9777

TS ISO 9777 defines the data elements, size and layout of the form used to confirm foreign exchange deals between banks by mail. The same form can also be used to correct, cancel, complete, or reconfirm a change to a previously issued confirmation, and it may be used for confirmation at maturity. In practical terms, the standard is about making interbank deal confirmation consistent, legible, and structurally predictable.

In general technical terms, foreign exchange confirmation forms are structured communication tools that record the commercial terms of a currency transaction. Standardising fields such as counterparties, amounts, currencies, value date, rate and settlement details helps reduce ambiguity and supports reconciliation between institutions. The reference to compatibility with the S.W.I.F.T. specification shows that the form’s data model is aligned with established financial messaging practice, even though certain field lengths may differ.

Form structure and data fields

The standard addresses which data elements the form carries and how they are sized and arranged. An important distinction in the scope is that the data elements are broadly compatible with S.W.I.F.T., but not identical in every field length. That means the underlying transaction information follows a recognisable banking message pattern, while the exact paper-form presentation is defined here.

• Mail confirmation form for interbank foreign exchange deals
• Correction, cancellation, completion, or reconfirmation of an amended confirmation
• Use at maturity for confirmation purposes
• Form size and layout
• Data elements compatible with S.W.I.F.T., subject to certain field-length differences