Excel convert cell formula to vba FormulaR1C1


I'm trying to convert the formula below to excel VBA a line of FormulaR1C1 code without success. Please help as I keep getting error 1004.

=IF(IF(ISERROR(VLOOKUP(Q3,dataLU1!$D$1:$D$200,1,0)),"",Q3)="","x xx "&U3,A3)

The formula goes in column "V"


ActiveCell.FormulaR1C1 = "=IF(IF(ISERROR(VLOOKUP(RC[-5],dataLU1!R1C4:R200C4,1,0)),"",RC{[-5]="""",&""x xx""&RC[-1],RC[-21])"
ActiveCell.Offset(1, 0).Select

Loop Until IsEmpty(ActiveCell.Offset(0, -21))

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Saurabh Singh TeotiaCommented:

Quick question which Column you want to apply this formula??

sq30Author Commented:
Saurabh "V" please
Saurabh Singh TeotiaCommented:
You don't need a loop statement you..can simply do this...

Dim lrow As Long

lrow = Cells(Cells.Rows.Count, "A").End(xlUp).Row

Range("V3:V" & lrow).Formula = "=IF(IF(ISERROR(VLOOKUP(Q3,dataLU1!$D$1:$D$200,1,0)),"""",Q3)="""",""x xx ""&U3,A3)"

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pls try
Set myrange = Range(Range("V3"), Range("V" & Range("A" & Rows.Count).End(xlUp).Row))
myrange.Formula = "=IF(IF(ISERROR(VLOOKUP(Q3,dataLU1!$D$1:$D$200,1,0)),"""",Q3)="""",""x xx ""&U3,A3)"

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sq30Author Commented:
Thank you and I can't believe how fast that works.
sq30Author Commented:
Sorry Rgonzo1971 I've just noticed your comment but Saurabh has worked perfect for me.
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