Perhaps this? The & operator does the same as concatenate and I prefer it to keep my formulas shorter.
Sheet1
<table style="font-family:Calibri,Arial; font-size:11pt; background-color:#ffffff; padding-left:2pt; padding-right:2pt; " border="1" cellpadding="0" cellspacing="0"> <colgroup><col style="font-weight:bold; width:30px; "><col style="width:64px;"><col style="width:64px;"><col style="width:64px;"><col style="width:64px;"><col style="width:64px;"></colgroup><tbody><tr style="background-color:#cacaca; text-align:center; font-weight:bold; font-size:8pt; "><td> </td><td>A</td><td>B</td><td>C</td><td>D</td><td>E</td></tr><tr style="height:18px ;"><td style="font-size:8pt; background-color:#cacaca; text-align:center; ">1</td><td style="text-align:center; ">Name</td><td style="text-align:center; ">Value</td><td> </td><td style="text-align:center; ">First</td><td style="text-align:center; ">Second</td></tr><tr style="height:18px ;"><td style="font-size:8pt; background-color:#cacaca; text-align:center; ">2</td><td style="text-align:center; ">ABC123</td><td style="text-align:center; ">3</td><td> </td><td style="text-align:center; ">ABC</td><td style="text-align:center; ">123</td></tr><tr style="height:18px ;"><td style="font-size:8pt; background-color:#cacaca; text-align:center; ">3</td><td style="text-align:center; ">CDE456</td><td style="text-align:center; ">8</td><td> </td><td> </td><td> </td></tr><tr style="height:18px ;"><td style="font-size:8pt; background-color:#cacaca; text-align:center; ">4</td><td style="text-align:center; ">ABC123</td><td style="text-align:center; ">5</td><td> </td><td style="text-align:center; ">Style 1</td><td style="text-align:center; ">21</td></tr><tr style="height:18px ;"><td style="font-size:8pt; background-color:#cacaca; text-align:center; ">5</td><td style="text-align:center; ">CDE456</td><td style="text-align:center; ">6</td><td> </td><td> </td><td> </td></tr><tr style="height:18px ;"><td style="font-size:8pt; background-color:#cacaca; text-align:center; ">6</td><td style="text-align:center; ">ABC123</td><td style="text-align:center; ">3</td><td> </td><td style="text-align:center; ">Style 2</td><td style="text-align:center; ">21</td></tr><tr style="height:18px ;"><td style="font-size:8pt; background-color:#cacaca; text-align:center; ">7</td><td style="text-align:center; ">CDE456</td><td style="text-align:center; ">1</td><td> </td><td> </td><td> </td></tr><tr style="height:18px ;"><td style="font-size:8pt; background-color:#cacaca; text-align:center; ">8</td><td style="text-align:center; ">ABC123</td><td style="text-align:center; ">2</td><td> </td><td> </td><td> </td></tr><tr style="height:18px ;"><td style="font-size:8pt; background-color:#cacaca; text-align:center; ">9</td><td style="text-align:center; ">CDE456</td><td style="text-align:center; ">3</td><td> </td><td> </td><td> </td></tr><tr style="height:18px ;"><td style="font-size:8pt; background-color:#cacaca; text-align:center; ">10</td><td style="text-align:center; ">ABC123</td><td style="text-align:center; ">8</td><td> </td><td> </td><td> </td></tr><tr style="height:18px ;"><td style="font-size:8pt; background-color:#cacaca; text-align:center; ">11</td><td style="text-align:center; ">CDE456</td><td style="text-align:center; ">1</td><td> </td><td> </td><td> </td></tr></tbody></table>
<table style="font-family:Arial; font-size:10pt; border-style: groove ;border-color:#00ff00;background-color:#fffcf9; color:#000000; "><tbody><tr><td>Spreadsheet Formulas</td></tr><tr><td><table style="font-family:Arial; font-size:9pt;" border="1" cellpadding="2" cellspacing="0"><tbody><tr style="background-color:#cacaca; font-size:10pt;"><td>Cell</td><td>Formula</td></tr><tr><td>E4</td><td>=SUMIF(A:A,D2&E2,B:B)</td></tr><tr><td>E6</td><td>=SUMIF(A:A,CONCATENATE(D2,E2),B:B)</td></tr></tbody></table></td></tr></tbody></table>