What is a critical aspect of maintaining customer relationships?

Consistent follow-up and engagement with all clients is crucial for maintaining customer relationships because it demonstrates a commitment to customer satisfaction and loyalty. Regular communication helps to establish trust, allows businesses to understand customer needs better, and provides opportunities to address any issues or concerns promptly. By actively engaging with clients, businesses can foster a stronger connection, leading to increased customer retention and potentially more referrals. This proactive approach not only enhances the customer experience but also shows that the business values each client, regardless of their spending level.

The other options suggest practices that can actually undermine customer relationships. Focusing service offerings exclusively on high-value customers can alienate regular clients and create a perception of inequality. Limited interaction and infrequent communication can lead to customers feeling overlooked or undervalued, which is detrimental to building lasting relationships.