Displaying queue numbers at bubble tea shops serves several purposes:

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1. Order Management

It helps the staff keep track of the orders and ensures they prepare them in the correct sequence. This can prevent confusion and streamline the process, especially during busy periods.

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2. Customer Convenience

Customers can easily see where they are in the queue and estimate how long they'll have to wait for their order. This transparency can help manage expectations and reduce frustration.

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3. Efficiency

Knowing their queue number encourages customers to stay nearby and be ready to collect their order promptly. This can help the shop maintain a steady flow of customers and reduce waiting times overall.

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4. Order Accuracy

By associating each order with a unique number, it minimizes the risk of confusion or mix-ups, ensuring that customers receive the correct items.

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Overall, displaying queue numbers enhances both the customer experience and the operational efficiency of the bubble tea shop.