When members pick up items from the warehouse, what must be done before opening the package?

When members pick up items from the warehouse, verifying the confirmation email and the member's ID is essential for several reasons. This process serves to authenticate the member’s identity, ensuring that the individual collecting the item is indeed the rightful owner of the order. It helps in preventing any mix-ups or potential fraud, ensuring that items are returned to their proper owners.

This verification step also facilitates a smooth and efficient pickup process, as it confirms that the order matches the member's account precisely and helps the staff to locate the items quickly. The necessity of confirming these details is integral to maintaining a secure and trustworthy environment within the warehouse, enhancing the overall member experience.

Additionally, while there might be reasons to consider the other choices, such as concerns over packaging or fee structures, they do not relate directly to the essential verification process that safeguards both the members' and Costco's interests.