同时开通服务商和普通商户，在使用普通商户模式发起支付下单时报错？

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同时开通服务商和普通商户，在使用普通商户模式发起支付下单时报错？Service providers and ordinary merchants are opened at the same time, and an error is reported when using the ordinary merchant mode to initiate payment and place an order?

Using the same entity to open a service provider and two merchant numbers of an ordinary merchant, when using an ordinary merchant to place an order for payment, sometimes the order can be paid successfully, and sometimes an error will be reported: the acceptance institution must pass in the sub_ mch_ ID, where did you fail to handle it correctly? The developer API uses V2 version

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