I assume that Orders has a one-to-many relationship with Warehouse Requests. It seems like you're going to want to have two Pipelines. You're going to want to bring the Date Created or some other standard field into Warehouse Requests from Orders
One which reads this data into the Warehouse Requests table because it is actually what each line represents.
Second One that is triggered On A New Event with Warehouse Requests. Use the standard field that you brought into Warehouse Requests as the filter to decide whether or not to create an Order. If you need to create the Order, then create it.
I hope that this helps.
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John Crosland
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