Repeat Numbering for like ID's

Traceelewis71

New Member
Hi, I have id's numbers that repeat and i need to count them with the same "row number" the formula I've come up with is: =if(b2=b1,"1",a1"+1"). each change in employee number it starts over to row number 1. what am i missing
Row NumberID Number
1123421
1123421
2222323
2222323
2222323
3434344
3434344
4545443

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</tbody>
 

Joe4

MrExcel MVP, Junior Admin
I think this may be what you are looking for:
Code:
[COLOR=#333333]=if(b2=b1,a1+1,1)[/COLOR]
 

DanteAmor

Well-known Member
If you want this result, You must start with 1 in cell A1 and in cell A2 put the formula:

=IF(B2=B1,A1,A1+1)

<table border="1" cellspacing="0" style="font-family:Calibri,Arial; font-size:11pt; background-color:#ffffff; "> <colgroup><col style="font-weight:bold; width:30px; " /><col style="width:76.04px;" /><col style="width:76.04px;" /></colgroup><tr style="background-color:#cacaca; text-align:center; font-weight:bold; font-size:8pt; "><td > </td><td >A</td><td >B</td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >1</td><td style="text-align:right; ">1</td><td style="background-color:#fafafa; color:#333333; font-family:Verdana; font-size:9pt; text-align:right; ">123421</td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >2</td><td style="text-align:right; ">1</td><td style="background-color:#fafafa; color:#333333; font-family:Verdana; font-size:9pt; text-align:right; ">123421</td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >3</td><td style="text-align:right; ">2</td><td style="background-color:#fafafa; color:#333333; font-family:Verdana; font-size:9pt; text-align:right; ">222323</td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >4</td><td style="text-align:right; ">2</td><td style="background-color:#fafafa; color:#333333; font-family:Verdana; font-size:9pt; text-align:right; ">222323</td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >5</td><td style="text-align:right; ">2</td><td style="background-color:#fafafa; color:#333333; font-family:Verdana; font-size:9pt; text-align:right; ">222323</td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >6</td><td style="text-align:right; ">3</td><td style="background-color:#fafafa; color:#333333; font-family:Verdana; font-size:9pt; text-align:right; ">434344</td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >7</td><td style="text-align:right; ">3</td><td style="background-color:#fafafa; color:#333333; font-family:Verdana; font-size:9pt; text-align:right; ">434344</td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >8</td><td style="text-align:right; ">4</td><td style="background-color:#fafafa; color:#333333; font-family:Verdana; font-size:9pt; text-align:right; ">545443</td></tr></table>

----
if you want this, You must start with 1 in cell A1 and in cell A2 put the formula:


=IF(B2=B1,A1+1,1)

<br /><table border="1" cellspacing="0" style="font-family:Calibri,Arial; font-size:11pt; background-color:#ffffff; "> <colgroup><col style="font-weight:bold; width:30px; " /><col style="width:76.04px;" /><col style="width:76.04px;" /></colgroup><tr style="background-color:#cacaca; text-align:center; font-weight:bold; font-size:8pt; "><td > </td><td >A</td><td >B</td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >1</td><td style="text-align:right; ">1</td><td style="background-color:#fafafa; color:#333333; font-family:Verdana; font-size:9pt; text-align:right; ">123421</td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >2</td><td style="text-align:right; ">2</td><td style="background-color:#fafafa; color:#333333; font-family:Verdana; font-size:9pt; text-align:right; ">123421</td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >3</td><td style="text-align:right; ">1</td><td style="background-color:#fafafa; color:#333333; font-family:Verdana; font-size:9pt; text-align:right; ">222323</td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >4</td><td style="text-align:right; ">2</td><td style="background-color:#fafafa; color:#333333; font-family:Verdana; font-size:9pt; text-align:right; ">222323</td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >5</td><td style="text-align:right; ">3</td><td style="background-color:#fafafa; color:#333333; font-family:Verdana; font-size:9pt; text-align:right; ">222323</td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >6</td><td style="text-align:right; ">1</td><td style="background-color:#fafafa; color:#333333; font-family:Verdana; font-size:9pt; text-align:right; ">434344</td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >7</td><td style="text-align:right; ">2</td><td style="background-color:#fafafa; color:#333333; font-family:Verdana; font-size:9pt; text-align:right; ">434344</td></tr><tr style="height:19px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >8</td><td style="text-align:right; ">1</td><td style="background-color:#fafafa; color:#333333; font-family:Verdana; font-size:9pt; text-align:right; ">545443</td></tr></table>
 

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