Lead Id for Product is a system reference used to track a customer opportunity from sourcing to application creation. In MSME lending platforms, a lead may be generated through branch sourcing, digital channels, campaigns, relationship managers, referrals, or partner integrations. The lead ID helps connect product interest, customer details, follow-up status, documents, and eventual loan application. For example, a working-capital lead can later convert into a formal cash-credit proposal while retaining the original sourcing trail. This field matters for workflow tracking, sales reporting, deduplication, and audit history, but it is not a credit-risk measure. The common caution is to ensure the lead is linked to the correct customer, product, and application so duplicate or stale leads do not distort reporting.