What should you do if a purchase was made in error?

Following the manufacturer's return policy is the correct approach when a purchase is made in error because this policy provides the systematic guidelines for returning items. Each manufacturer or vendor typically outlines their conditions for returns, including timeframes, procedures, and any required paperwork. Adhering to this policy helps ensure that the return process is compliant and efficient, potentially allowing for a refund or exchange of the purchased item.

Ignoring the purchase may lead to unnecessary financial loss or complications, while notifying the vendor to cancel the purchase is often not possible once the transaction is completed and the item has been shipped. Moreover, simply notifying the Approving Official without taking steps to return the item does not address the financial implications of the erroneous purchase and may not lead to resolving the issue effectively. Hence, following the manufacturer's return policy is the most constructive and responsible option in this situation.