One accommodation that her employer can implement is that whenever a customer has a question of some sort that another employee is available to take over and answer the question.
Another accommodation that her employer could  could simply have a system where they can not only communicate with the customers but also hand them over without any complications.
Exchanging information and ideas within an organization is called workplace communication. However, effective communication occurs when a message is sent and received accurately. In every aspect of life (both professional and personal), effective communication is important to success and happiness.
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