change allocation/Reservation automatically according to Order Request Date

Summary:

Is there anything that can be done to force the system to automatically change allocation/Reservation according to Order Request Date?

Content (required):

Hello experts, 

I would like to know if it's possible.

For example:

I've 3 sales orders (SO1, SO2, and SO3) created with the status "AWAITING_SHIPPING", with the respective Request Date, 25-NOV, 28-OCT, and 22-NOV, requesting the same Part Number.

Now, the user is creating a new Sales Order (SO4) with the requested date to 22-OCT, however, the Sales ORder can't be updated with the status "Awaiting_Shipping" because there isn't more ONHAND to this part number.