ERP handles what comes "after the deal is closed"—inventory, finance, production. CRM handles "customer relationships"—contact records and follow-up reminders. But neither was designed to manage "the moment of closing" itself: adjusting prices and terms for different buyers, letting buyers configure specs and run calculations, converting quotations into PIs automatically, tracking whether buyers respond. This workflow sits in the gap between ERP and CRM and traditionally has only been handled by manual work from sales teams. The solution is to add a layer on top of your ERP specifically designed to handle "external closing workflows", so that quotation terms, document generation, and buyer interactions are system-driven rather than completely dependent on manual effort.