Short answer
In lending, an operational ledger records account-level events and balances, while the General Ledger is the enterprise accounting book receiving postings under the chart of accounts and accounting rules.
Why this matters
This design choice directly affects correctness, control, integration and auditability.
Questions to answer before design
What is the system of record? Where do rules live? Which data is sensitive? What evidence must be retained? Who owns operations after go-live?
Frequently asked question
Is there one correct design for every organization?
No. Final design depends on products, policy, existing systems, data, risk and the institution’s operating model.