Find Discripency Excel

Please find attached the excel file i am working.

I need a macro to do the below task.

if order no (COL B) is same and Invoice No (COL I) is same then check whether Invoice Line Nos (COl J) is in order and not missing say for example it should be like 1, 2, 3, 4 etc..

i only need to check whether if it is 1, 3, 4 order or like that where one or many number is missing from the sequence. Please help.
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Try macro below
Sub check()

    Do Until Selection.Value = ""
       If Selection.Value = Selection.Offset(-1, 0).Value And _
          Selection.Offset(0, 7).Value = Selection.Offset(-1, 7).Value Then
       If Selection.Offset(0, 8).Value <> Selection.Offset(-1, 8).Value + 1 Then
          Selection.Offset(0, 8).Interior.Color = 255
          Selection.Offset(0, 8).Interior.Color = xlNone
       End If
       Selection.Offset(0, 8).Interior.Color = xlNone
       End If
       Selection.Offset(1, 0).Select

End Sub

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Saqib Husain, SyedEngineerCommented:
Enter this formula in O2 and copy down. This will solve your problem in a very simple way.

=IF(J2=1,"",IF(SUMPRODUCT(($A$2:$A$9=A2)*($I$2:$I$9=I2)*($J$3:$J$10=J2-1))=0,"Previous record missing",""))

if you have more rows you can adjust the 9 in the formula to whatever you have.


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suvmitraAuthor Commented:
I have tried some samples and find ssaqibh ' solution is providing more correct different situations. Thank you all.
suvmitraAuthor Commented:
is it possible to have a VBA code for this formula ... also I think we should take reference for B column not A column ..pls let me know. Thanks.

=IF(J2=1,"",IF(SUMPRODUCT(($A$2:$A$9=A2)*($I$2:$I$9=I2)*($J$3:$J$10=J2-1))=0,"Previous record missing",""))
Saqib Husain, SyedEngineerCommented:
Try this sub

Sub polulateformula()
lr = ActiveSheet.Range("A" & ActiveSheet.Rows.Count).End(xlUp).Row
ActiveSheet.Range("O2:O" & lr).FormulaR1C1 = _
"=IF(RC[-5]=1,"""",IF(SUMPRODUCT((R2C2:R" & lr & "C2=RC[-13])*(R2C9:R" & lr & "C9=RC[-6])*(R2C10:R" & lr & "C10=RC[-5]-1))=0,""Previous record missing"",""""))"
End Sub
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