Shipping rule changes to 'Ship Complete' when the SO is in the 'Back order' state

Hi Acumatica community members, 

In one of my customers environment , I have created a sales order for a customer .In the customers screen I have defined the shipping rule as ‘Back Order Allowed’. In the sales order screen when creating a new sales order for this customer , the shipping rule in the sale order shows as ‘Back Order Allowed’ which is the expected behaviour.

Then I created a shipment for this sales order for partial quantities , and confirmed the shipment . The sales order status shows as ‘Back Order’ which is the expected behaviour but the Shipping rule in the shipping tab  of the sales order and also the detail tab shows as ‘Ship Complete’ which is not the expected outcome. This should be ‘ Back Order Allowed’.


I tested this in the default local instance , the behavious is the shipping rule kept ‘Back Order Allowed’ when the sales order is in the ‘back order’ state.

In other words , I could not replicate the issue in my default local instance.

Is there any reason for this behaviour in customer’s environment ?