> ## Documentation Index > Fetch the complete documentation index at: https://docs.lerian.studio/llms.txt > Use this file to discover all available pages before exploring further. # Advance the tenant's business date > Sandbox and homologação only (BUSINESS_DATE_ENABLED). Closes each day after the business date through the target, in order, running the nightly chain on each. The first advance pins the tenant at today in São Paulo and closes it. Where a ledger relay is configured, a day closes only once its postings reached the ledger. 409 LENDER-0804, 503 LENDER-0805 and 503 LENDER-0808: resend the same target. ## OpenAPI ````yaml /es/openapi/v3-current/lender.yaml post /api/v1/business-date/advance openapi: 3.1.0 info: contact: email: contact@lerian.studio name: Lerian Studio url: https://lerian.studio description: >- Code-first OpenAPI 3.1 surface for the Lender service. Routes that move money are at-most-once per X-Idempotency: when one answers 5xx, the X-Idempotency-Fenced response header says whether that key is now refusing resends (true) or free to retry (false or absent). license: name: Lerian Studio General License title: Lender API version: 1.0.0 servers: - url: https://lender.sandbox.lerian.net security: - BearerAuth: [] tags: - description: >- Caller session projection: validated subject and effective permissions for the presented token. name: Session - description: >- Ledger accounting operations: journal entries and accrual postings for loan accounts. Operations under /api/v1/internal are back-office operations for the client's operators: they require a person's login, and a service credential gets 403. name: Accounting - description: >- Loan application intake and lifecycle: submission, decisioning, and status. name: LoanApplications - description: >- Loan product catalog: definition, versioning, and activation of lending products. name: LoanProducts - description: >- Loan account servicing operations: balances, schedules, and account-level actions. name: Loan Accounts - description: >- Portfolio dashboard read operations: aggregated portfolio and performance views. name: Dashboard - description: >- Jurisdiction registry: supported jurisdiction profiles and their capabilities. name: Jurisdictions - description: >- Jurisdiction-specific loan application operations (Brazil origination surface). name: Loan Applications - description: >- Tax computation operations for jurisdiction-specific lending (e.g. Brazil IOF). name: Tax - description: >- Brazil consignado privado operations: contract lifecycle, exclusion repair, and compensating adjustments. Operations under /api/v1/internal are back-office operations for the client's operators: they require a person's login, and a service credential gets 403. name: Consignado - description: >- Inbound record quarantine. Operations under /api/v1/internal are back-office operations for the client's operators: they require a person's login, and a service credential gets 403. name: Streaming - description: >- Credit-instrument document template registry: versioned drafting and publication of CCB clausulado. name: DocumentTemplates paths: /api/v1/business-date/advance: post: tags: - Business Date summary: Advance the tenant's business date description: >- Sandbox and homologação only (BUSINESS_DATE_ENABLED). Closes each day after the business date through the target, in order, running the nightly chain on each. The first advance pins the tenant at today in São Paulo and closes it. Where a ledger relay is configured, a day closes only once its postings reached the ledger. 409 LENDER-0804, 503 LENDER-0805 and 503 LENDER-0808: resend the same target. operationId: advanceBusinessDate requestBody: content: application/json: schema: $ref: '#/components/schemas/BusinessDateAdvanceRequest' required: true responses: '200': content: application/json: schema: $ref: '#/components/schemas/BusinessDateAdvanceBody' description: OK '401': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Unauthorized '403': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Forbidden '404': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Not Found '409': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Conflict '413': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Request Entity Too Large '422': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Unprocessable Entity '500': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Internal Server Error '503': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Service Unavailable '504': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Gateway Timeout default: content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: >- Any other status this operation may carry, rendered as a problem document — including a refusal produced ahead of the service, such as a gateway or ingress answering on its behalf. components: schemas: BusinessDateAdvanceRequest: additionalProperties: false properties: businessDate: description: >- The target business date: at most 31 days past the current one, never before it. It is the idempotency key: the current date closes nothing, and a resend resumes at the first day that did not close. examples: - '2027-02-01' format: date type: string required: - businessDate type: object BusinessDateAdvanceBody: additionalProperties: false properties: businessDate: description: 'The business date after this call: the target.' examples: - '2027-02-01' format: date type: string days: description: >- The days this call closed, in order; empty when the target already was the business date. items: $ref: '#/components/schemas/BusinessDayClosedBody' type: array from: description: >- The business date before this call; the day before today in São Paulo for a tenant not yet pinned. examples: - '2027-01-31' format: date type: string required: - from - businessDate - days type: object Detail: additionalProperties: true properties: code: description: >- Stable, machine-readable domain error code scoped to the emitting service (format: -NNNN). type: string detail: description: >- A human-readable explanation specific to this occurrence of the problem. examples: - Property foo is required but is missing. type: string errors: description: Optional list of individual error details items: $ref: '#/components/schemas/ErrorDetail' type: - array - 'null' instance: description: >- A URI reference that identifies the specific occurrence of the problem. examples: - https://example.com/error-log/abc123 format: uri type: string status: description: HTTP status code examples: - 400 format: int64 type: integer title: description: >- A short, human-readable summary of the problem type. This value should not change between occurrences of the error. examples: - Bad Request type: string type: default: about:blank description: A URI reference to human-readable documentation for the error. examples: - https://example.com/errors/example format: uri type: string upstream: $ref: '#/components/schemas/Upstream' description: >- RFC 9457 extension member: the error a proxied third-party provider reported. Absent unless the emitting service explicitly surfaced one. type: object BusinessDayClosedBody: additionalProperties: false properties: date: description: The business day closed. examples: - '2027-02-01' format: date type: string durationMs: description: How long the day's chain took, in milliseconds. format: int64 type: integer steps: description: The nightly chain's steps the day ran, in order. items: type: string type: array required: - date - steps - durationMs type: object ErrorDetail: additionalProperties: false properties: location: description: >- Where the error occurred, e.g. 'body.items[3].tags' or 'path.thing-id' type: string message: description: Error message text type: string value: description: The value at the given location type: object Upstream: additionalProperties: false properties: code: description: The upstream provider's own error code, verbatim. examples: - E4001 type: string message: description: >- The upstream provider's own error message, verbatim (bounded, never its raw response body). examples: - account not found at provider type: string type: object securitySchemes: BearerAuth: bearerFormat: JWT description: JWT bearer token issued by the identity provider. scheme: bearer type: http ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.