This study examines how retail, hospitality, and healthcare sales teams adjust to omni-channel marketing. Omni-channel marketing, which integrates digital and physical touchpoints, is vital for unified customer experiences. Sales teams must adapt to manage client contacts across numerous channels and provide consistent and customised engagement to deploy it successfully. This study analyses three companies to determine how sales teams adapt to omni-channel settings, their problems, and how technology, particularly CRM systems, supports customer-centric tactics. While CRM tools and data analytics help sales staff tailor encounters, success depends on comprehensive training and interdepartmental coordination. All sales teams said digital literacy and cross-channel communication were crucial for omni-channel engagements. Industry-specific issues like hotel real-time data integration and healthcare data security hinder smooth client experiences. These findings show that omni-channel marketing tactics are useful across industries but require a personalised strategy.