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UPC-A codes check digit macro request

Posted on 2009-05-18
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Last Modified: 2012-05-07
I have a listing of 11-digit codes that I need to create into UPC-A codes to store in Excel, the barcode is not required. Can someone create a macro with install directions?

I have the UPC Code in one column and want to get the UPC-A (with check digit code) in the column next to it
UPC CODE	UPC-A Code
69681200001	
69681200002	
69681200003	
69681200004	
69681200005	
69681200006	
69681200007	
69681200008	
69681200009	
69681200010	
69681200011	
69681200012	
69681200013	
69681200014	
69681200015	
69681200016
69681200017

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Question by:trayceejay
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zorvek (Kevin Jones) earned 500 total points
ID: 24412861
You can use a formula. Assuming the UPC code is in A1:

   =9-MOD(SUMPRODUCT(VALUE(MID(A1,ROW(OFFSET($A$1,0,0,LEN(A1))),1))*(MOD(ROW(OFFSET($A$1,17-LEN(A1),0,LEN(A1))),2)*2+1))-1,10)

Kevin
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by:trayceejay
ID: 24413001
Thanks for the quick response! I have a question on how to handle if it's not in A1.

If it's not in A1, do I simply change all A1 to be the cell it's in? Does this include $A$1 or no?

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LVL 81

Expert Comment

by:zorvek (Kevin Jones)
ID: 24413033
No. Do not change the $A$1 references. That is used as a trick to make the SUMPRODUCT function work. The same formula assuming the value is in A2:

   =9-MOD(SUMPRODUCT(VALUE(MID(A2,ROW(OFFSET($A$1,0,0,LEN(A2))),1))*(MOD(ROW(OFFSET($A$1,17-LEN(A2),0,LEN(A2))),2)*2+1))-1,10)

Kevin
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