To resolve issues where some customers are not seeing the correct pricing on the Product Detail Page, the following places should be examined:

Global Preferences (C): It's critical to check the global preferences settings to ensure they align with the intended pricing strategy and configurations. This includes checking currency settings, pricing rules, and tax configurations, which can all influence the pricing displayed to customers.

Error during replication (D): If there were errors during data replication, this could lead to inconsistencies such as incorrect pricing being shown. Ensuring that data has been replicated correctly and without errors is essential, particularly when moving from staging to production environments.

Cache settings (E): Incorrect cache settings or outdated cached data can cause old or incorrect pricing to be displayed. Clearing the cache or verifying that cache invalidation rules are correctly set can resolve such issues.

These steps are critical for ensuring that the displayed pricing is accurate and consistent, providing a seamless user experience.