Capable to Promise Availability Details Pegging doesn't show item or resource causing late supply

Summary:

Capable to Promise in GOP Cloud the Availability Details - Pegging Tree doesn't show item or resource causing the late supply. It shows all the items part of the BOM. We are aware of that no Constraints will be shown at this point, but how do we identify the item or resource causing the Finished good demand to be late.

Content (please ensure you mask any confidential information):

Our Client is migrating from EBS Onprem GOP to GOP Cloud. Onprem GOP shows the entire pegging tree and also the constraint which is causing the delay. 

In GOP Cloud, there is no such mechanism. Once the delayed date is identified by Cloud GOP all the lines in the pegging tree shows the delayed date, even for items where there is onhand. So, we cannot see how we can identify the item causing the lateness especially when the pegging tree is having hundreds of lines in a Capable to promise call. We are using the Manage Order Promising Demands table to do Simulation demand inquiry similar to ATP Inquiry. This will be done by the planners to identify the lateness to reply to the customer representative on