Displaying Revision Levels 
If you make changes with reference to a change number, you can assign revision levels to specific processing stages.
You can display the revision levels of the header material in any processing situation.
How to display the revision levels of the header material of a BOM:
- Choose Extras → Disp. revision level.
You see the Display Material Revision Level dialog box, which lists all revision levels that have been assigned to the material of the BOM header.
- The first line contains the material of the BOM header.
In the following lines, you see all the revision levels that have been assigned for changes with reference to a change number:
- Revision level
- Valid from
- Change number and description
- To return to the BOM processing function, choose Continue.