A failure to notify is a failure to inform or report something that is required by law or by the terms of an agreement. The specific consequences of a failure to notify can vary depending on the circumstances and the applicable laws or agreements.

For example, a failure to notify the authorities of a change of address may result in a fine or other penalties. Similarly, a failure to notify an insurance company of a change in circumstances that may affect coverage, such as a change in the use of a vehicle, may result in the voiding of the insurance policy.

In the context of a business, a failure to notify relevant parties, such as customers or regulators, of a change in circumstances or a problem with a product or service, could have serious consequences, including fines, legal action, and damage to the company's reputation.

It is important to be aware of any notification requirements and to ensure that necessary notifications are made in a timely manner to avoid any potential consequences.