To qualify for an instant loan, an applicant must earn a monthly income of at...

For enforcing restrictions on income and total liability when applying for an instant loan, a single Validate rule containing two conditions (one for the minimum monthly income of GBP 2000 and another for the maximum total liability of GBP 20000) provides a cohesive validation strategy. This configuration minimizes complexity and ensures that both key financial thresholds are evaluated at the same time, making the validation process more efficient and less prone to errors.