Banking customers rarely hold one product. A business banking client may have a current account, a commercial mortgage, asset finance and an FX facility, each administered on a different system and often serviced by a different team who cannot see the others.
A CRM (customer relationship management system) sits above those systems and holds the relationship: who the customer is, which products they hold, who looks after them and every conversation that has taken place.
It doesn't replace your core banking or lending platform. It covers the client-facing layer - onboarding progress, applications in flight, review dates, complaints and the next best conversation.
For most banks and lenders, a CRM is where the following live: