Final answer:
True. Inappropriate use of fax machines can lead to a breakdown in customer relationships.
Step-by-step explanation:
True. Inappropriate use of fax machines to send messages can indeed lead to a breakdown in customer relationships. With advancements in technology, many people prefer non-voice messaging apps or texts for communication. Using outdated methods like fax machines may be seen as inefficient and inconvenient by customers, potentially leading to frustration and a negative impression of the business.