Step 1: Make sure the order is not currently running and is unloaded from the MI system

Step 2: Understand why we are reversing the production order (Must be done only if it is absolutely necessary)

Step 3: Use T-code HUCANC to reverse the goods movement ( get this from Co03) 

How to get documented goods from co03  

Step 4: Cancel each Material doc number in HUCANC T-code

Step 5: Cancel confirmation of order in CO13N (raw material consumption/reservation should be cleared)

Step 6: Go back into the production to verify if production is reversed and consumption is zero

Step 7: If everything is ok Modify/Delete HUs as per the case

Step 8: Then do any required changes to the Master data 

Step 9; Once step 8 is complete and Verified recreate Hus for the PO