I think customer service is the main and most important goal of any business because at the end of the day, regardless of all the strategies, marketing and operations management, if the customer is not satisfied with the product or service, the purpose of the whole company will fall. Therefore, the operations manager must ensure that all customer needs and demands are met, just as the company must ensure that it uses all its resources effectively. If resources are not used carefully, the company runs the risk that production costs will increase and in the future the overall profit margin will reduce and the company's overall objective will fail. So both objectives must be achieved in a balanced way so that the company benefits from it to succeed and not fail in the long term.