What a credit journey engine is
A credit operation is not a single event — it is a journey that spans months or years and touches many teams. A credit journey engine manages that journey end to end:
- Product definition: Loan products with versioned terms, charges, and rate configurations, so every contract traces back to the exact product version it was originated under.
- Origination: Application intake, approval or rejection decisions, disbursement, schedule preview, and the regulatory disclosures the jurisdiction requires.
- Servicing: Active contract schedules, repayment recording, prepayment, rescheduling, and corrections — with reversals and replays that keep history consistent.
- Accounting: Posting rules that map financial events onto general-ledger accounts, durable posting intents, and accrual runs that recognize interest month by month.
- Audit: An immutable of every lifecycle event, preserved for compliance.
The five domains
Under the hood, Lender is organized into five bounded domains. Every credit journey — whatever the product — flows through them:
Start with Core concepts for the vocabulary, then follow the guides for each domain.
Jurisdiction-aware, Brazil first
Credit rules differ by jurisdiction, so Lender is built jurisdiction-aware from the start: a generic baseline for any market, and a deep Brazilian profile layered on top. The CDC journey maps onto that model. CDC covers fixed-schedule consumer credit, with the disclosures consumer regulation requires. The deepest journey is consignado privado — payroll-deducted lending in Brazil, with its own collateral model and averbação lifecycle tracking. See Consignado privado. For everything the Brazilian profile adds — CET disclosure, IOF preview, capitalization consent, PDD staging, and more — see the Brazil regulatory pack.
How Lender composes with the platform
Lender is a Lerian primitive: it runs on the platform rather than beside it.
- Ledger: Disbursement, interest accrual, and a prepayment settled against a Brazilian prepayment quote record durable posting intents through the accounting profiles and posting rules you configure. Lender relays them to the only when the ledger relay is configured. The ledger stays the source of truth for balances; Lender stays the source of truth for the credit journey.
- Multi-tenancy: Like every Lerian product, Lender is built for full tenant isolation from the ground up.
- Events: When streaming is enabled and a broker is configured, lifecycle events publish on the platform’s streaming backbone, so downstream products and your own services can react to the credit journey as it unfolds.
- Observability: Structured logs, traces, and metrics on the same observability stack as the rest of the platform.
Next steps
Core concepts
Learn the vocabulary: loan products, accounting profiles, applications, loan accounts, accrual runs, and the Brazil terms.
Lender in the platform
See how Lender posts to the , emits events, and isolates tenants.
Originate a loan
Walk an application from intake through preview, approval, and disbursement.
Consignado privado
Explore the flagship Brazilian journey: the vocabulary, the collateral model, and averbação.

