How to "roll back" SAP APO PPDS planning batch run from infeasible batch mid-point to before start of planning batch run?

Question

Hi Experts,
We are investigating if any SAP customer that implemented SAP APO PPDS has ever attempted to establish a "roll back" of the SAP APO PPDS created supply plan to a defined point before the start of the SAP APO PPDS planning batch run?  
We have a situation where - in the middle of the planning batch run - randomly or intermittent the batch run hangs or runs a step for multiple hours that normally, at most days, takes only a few minutes to run.  In a situation like this, the supply plan is not in a state where customer sales orders can be promised  (using GATP CTP) or planned orders can be converted to production orders and published to SAP ECC, etc since the plan may be capacity infeasible or simply partial or incomplete.   To not hold the business operations hostage to wait resuming operations (promise customer sales orders, convert and release and execute orders to transfer, deliver, produce, or purchase) for hours or days, we need to find a way back to the original plan right before the nightly PPDS batch planning job started.
We already close all the queues from ECC to APO, thus, no CIF traffic from ECC to APO.  We also shut down the customer sales order feed into ECC as normal process for duration of the APO PPDS batch planning run.  Thus, functionally,  we are theoretically in a situation to simply go back to a PPDS and active planning version save prior to the run.  Yet, many more technical and BASIS-related questions remain on how to roll back to a state where the plan was not compromised.
This inquiry is to learn if any other SAP customer has ever established a process to roll back SAP APO PPDS to a previous point in time supply plan to resume operations?  Whatever the reasons are, be it after a failed  batch run, or any time during the normal interactive plan day.  
Additional information about our design and plan:  
1.  We have a two year horizon supply plan in PPDS
2.  We only publish to ECC 14 days worth of planned orders, stock transfer requirements, and purchase requirements
3.  We convert planned orders to production orders and release production orders in ECC 2 days before first operation starts
4.  We convert PR's to PO's and STR's to STO's in ECC  2 days before execution (ship or submit to vendor)
Any indication where a SAP customer has developed and uses a process to roll back an SAP APO PPDS- planned supply plan to an earlier point in time or version would be helpful to know.
Regards,
Manimaran M.

Answer 1

Hi  Manimaran,
Saving in Simulation means in DS board when you click on save it provides you option to save sim version or adopt to active version. If you copy to inactive version you cannot copy back  trasaction data specially PPDs orders back to active version again while if you save in simulation you can adope it to active version at any point of time. YOu can adopt simulation version changes to active version using T-code /SAPAPO/CDPSS0
Copying to active version means you copy data from version 000 to some other active version while here results are kept simulation,