A negative acknowledgment is a request that should only trigger a response if there are unresolved questions or issues that need to be resolved.
If there are no questions, the answer is not sent, and the absence of the answer serves as a negative confirmation.
Negative confirmation letters are often used in the financial services industry, including by accountants who wish to verify a client’s financial information.
Negative, as opposed to positive, acknowledgments help reduce the amount of incoming mail, increasing efficiency and reducing waste.