Hi Klaus,
Every single delivery sent should be available in the delivery view of the application (even the ones that are part of a recurring delivery). For example here we have 7 deliveries sent from the Happy Birthday recurring delivery of the BIRTHDAY campaign. Each one contains reports specific to this particular delivery.
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You can filter the deliveries to display in this node by applying an advanced filter. For example, you can only select deliveries attached to a particular recurring delivery.
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Let me know if you have any questions on this.
-Tacia