Phenomenal Absolutism is the $($mis$)$perception that all others perceive the situation the same as you do$.$ It is a type of bias, and like most types of biases, most individuals are not aware of their own bias.

For marketing managers and leaders this often leads to mistakes in the form of:

Overestimating the benefits perceived by the actual customer.

Same pricing strategy as competitors.

Misinterpreting who the actual decision maker is$.$

Unanticipated costs for consumers to acquire the company's products.