Can I make sure that the audience of a future Send is included in the prioritization calculations before I have the actual audience ready?

yes, you can by deploying a rough target audience approach let’s take a step back and look at what the challenge is a pain point some customers may have is that they need to wait to receive the segmentation for some sends close to the send date by the time they receive their actual audience, all the previous campaigns have already been sent and the audience for this send cannot be considered for prioritization calculations anymore for instance, this new send is more important than the campaign sends i had yesterday, but i cannot prioritize it anymore because yesterday's emails already happened; if i had the new target audience before yesterday, i could have made sure that this send was prioritized above the other planned sends from yesterday you can solve this challenge by using the rough target audience approach in this solution, you create the send with a data extension using an approximate target audience for example, if you know that the final shipment is going to certain belgian customers, you could create a de with everyone from belgium this way, engage would reserve the send to all the people in the approximate target group and exclude them from other campaigns with lower priorities, if necessary note if a customer was in the rough target audience, but no longer in the actual target audience, they will not receive this communication