Compare two lists each with two columns, highlight differences. CAD vs ERP BOM compare.

Hello,

I am currently working as a design engineer and am trying to develop a way to compare our CAD model Bill of material to our ERP systems after pasting the contents of each in excel. Using conditional formatting we want to highlight the changes in each pair of columns green if there is a match and yellow if there is a part number match but quantities are off. The two columns in each are Part # and Quantity of that model. The two lists are on separate sheets of the same workbook because this workbook is going to be doing more then just comparing the BOM, this will not be changed. We have one made that almost works correctly but comes up with errors whenever you move stuff around vertically or try and change the columns each are posted in. I want to do this because this is not the format I want it in. Also I will attach the workbook and i'm not sure if vlookup is the way to go in terms of flexibility but if possible I would like to stick with conditional formatting and avoid vba as my experience is extremely novice in this area.

Lastly the parts of the BOM that don't start with numbers are sheet metal parts and don't need to be compared but will always get pasted as well as the other info.

Thank you for any and all help!