You want to make your Order Statuses so they can fit a "pattern" of what Orders can get Downloads ...

If you look in the Configuration ... Attribute Settings ... you will see that the defaults are >= 2 and <=4 ...

If you want that to include other Order Statuses, such as Backorder ... you could make Back Order the orders_id 4 and change Update to 5 ... and change the setting to <= 5 ...

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