The assignment content discusses the importance of sales and marketing planning in maintaining relationships with customers, particularly for small and medium-sized enterprises (SMEs). It highlights the role of relationship management software and social media tools in improving customer interaction. The content also emphasizes the need to set a budget, communicate the plan to employees, and monitor its effectiveness. Furthermore, it suggests that sales and marketing theories, such as the AIDA model, can be applied to SMEs to improve their overall performance.