1, the operation is only allowed to carry out a single POS job, can not be carried out at the same time multiple POS operations, to prevent label confusion;<br>2, label payment needs to be one-to-one correspondence.<br>3, this position must hang the production line is currently in the production of customized information control table, and according to the custom information control table to check whether the product custom information is correct, to avoid setting errors.
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