Which aspect is NOT impacted by postal policies?

Employee promotions are primarily influenced by individual performance, skills, and qualifications rather than directly by postal policies. While postal policies set the framework for overall operations, including guidelines for promotions, they do not dictate specific individual advancement. Each employee's path to promotion is typically based on merit, performance reviews, and available positions rather than the broader impact of postal policies.

In contrast, customer service, productivity, and revenue are all significantly affected by postal policies. Customer service policies dictate how employees interact with customers and handle their inquiries, directly impacting customer satisfaction. Productivity policies can influence efficiency, workflow, and resource allocation, ultimately affecting how much work gets done within the postal system. Revenue is directly tied to policies governing pricing, service offerings, and operational strategies, which collectively determine how financial resources are generated and managed.