Calling the Status Monitor for the Vehicle IDoc 
Use
You can use the status monitor to display incoming vehicle IDocs. You can also see exactly which vehicle data has changed and you can accept or reject the changes manually.

You can display logs for the status monitor with transaction VELOP01 or by choosing
Hist. Logs in the selection screen of the status monitor. You can delete the logs with transaction SLG2 (object VMS_IDOC).
Procedure
The selection screen for the status monitor appears.
The values proposed when you choose F4 (combination of organization channel and external status) come from the Customizing transaction OVELO5 Define External Status.
Only the following IDoc statuses are possible:
51 (IDoc has not been posted since an error occurred; red traffic lights)
52 (IDoc has not been posted since changes have been made that must be confirmed; amber traffic lights)
53 (IDoc has been posted; green traffic lights)
Deselect the field if you want to trigger this process manually by selecting the desired IDocs from the list and choosing
Accept.
A screen displaying the selected IDocs appears. You see different data in different colors for each IDoc with status 51 or 52: the pale area displays configuration characteristics, the yellow area the qualifiers and the blue area the vehicle data. Only the new or the changed data is displayed; new and old values are displayed next to one another so that you can compare them.

You can branch to the general IDoc monitor by double clicking on the IDoc number (transaction BD87) - all the IDoc processing functions are then at your disposal.
Result
If you accept the IDocs, the action that is assigned to the external status of the vehicles is performed, and the vehicles are set to their internal status that is in the appropriate action matrix. Vehicle data and documents are changed appropriately.
Irrespective of whether you have accepted or rejected the changes, the IDoc status changes from 52 to 53.

If you are sure that vehicle data in IDocs is to be accepted automatically as soon as the IDoc takes effect, you can define this directly in Customizing (transaction OVELO5).