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- string SetNewsletterQueueOrder (string accessKey, string scheduleID, bool up)
- accessKey: access key obtained using the LoginFromId method
- scheduleID: delivery ID returned by the WS_MailUpSend.SendNewsletterGetNewsletterQueues or already used in WS_MailUpSend.ScheduleNewsletterQueue
- up: if true, Immediate Mailing related to scheduleID will be shift of one position towards the top of the queue, if false towards the bottom of the queue.
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