Allocate Inventory to C1 held Orders

Adam with Problems

I'm using EnterpriseOne 9.1.5

I have some orders that stay on C1 credit hold until just before shipment. (Cash in advance customers)
The items in backorder during sales order entry, remain in backorder until the C1 hold is released.

As inventory comes into stock, how can I allocate inventory to these orders that are still on C1 hold?
Currently when inventory comes in, it will allocated oldest date to newest date, but skip over C1 held orders.

Do I need to make an adjustment in my backorder release program R42118?, or in some other commitment program such as R42997?