The narrative above explains; the sections below are authoritative — the rules, scenarios and tests this document binds.
| # | Surface | Action | Capability | Expected | Provenance |
|---|---|---|---|---|---|
| 1 | /console/{tenantId}/configuration/accounting/businessUnits | Enable CAD and EUR and select provider/prohibited-pricing policy for EUR. | CAP-ACC-BKS-002 | The unit returns both currencies with their chosen settings. | test |
| 2 | /console/{tenantId}/configuration/accounting/glAccounts | Create a Canadian-dollar cash account. | CAP-ACC-BKS-005 | The picker offers the base and supported currencies and saves the CAD account. | test |
| 3 | /console/{tenantId}/configuration/accounting/exchangeRates | Enter today’s CAD quote and an earlier quote as decimal text. | CAP-ACC-BKS-004 | The list orders the quotes newest first at ten-place precision. | test |
| 4 | resolveExchangeRate | Resolve yesterday’s CAD quote and today’s EUR quote. | CAP-ACC-BKS-004 | CAD selects the earlier quote and unquoted EUR returns provider sourcing with prohibited missing-price handling. | test |
| 5 | /console/{tenantId}/configuration/accounting/businessUnits | Attempt to drop CAD support. | CAP-ACC-BKS-002 | The refusal identifies the Canadian-dollar account dependency. | test |
| Path | From step | Condition | Path taken | Outcome | Provenance |
|---|---|---|---|---|---|
| alternate | 3 | EUR provider filling is requested without an available development connection. | The operation reports provider unavailability. | No rate is persisted. | test services-accounting:modules/books/tests/e2e/exchange-rates.e2e.spec.js#refuses the fill 409 provider_unavailable while no platform client exists, writing nothing |
| failure | 1 | Multicurrency is enabled with an empty supported set. | The unit save fails validation. | Single-currency operation remains in force. | test services-accounting:modules/books/tests/integration/services/persistence/business-units.integration.spec.js#refuses Enable Multicurrency on a create with no supported currency, in Rhythm 1.0’s words |
| Id | Statement | Provenance |
|---|---|---|
01 | The saved supported set and policies match the configured currencies. | test |
02 | Dated resolution selects the latest eligible quote. | test |
03 | An existing account prevents removal of its supported currency. | test |
End-to-end policy: required: Currency choices, account pickers and rate maintenance must use the same unit configuration.