
Originally Posted by
etaf
create a complicated IF statement, using your index match
Note I have only updated the formula for 2 sheets - so we would need to extend to all 12 sheets - but check this is what you want first and that it actually works on the real data first
=IF(NOT(ISERROR(INDEX(Sheet2!$A:$O,MATCH(Sheet1!$E4,Sheet2!$C:$C,0)-1,MATCH(Sheet1!G$3,Sheet2!$A$3:$O$3,0)))),INDEX(Sheet2!$A:$O,MATCH(Sheet1!$E4,Sheet2!$C:$C,0)-1,MATCH(Sheet1!G$3,Sheet2!$A$3:$O$3,0)),IF(NOT(ISERROR(INDEX(Sheet3!$A:$O,MATCH(Sheet1!$E4,Sheet3!$C:$C,0)-1,MATCH(Sheet1!G$3,Sheet3!$A$3:$O$3,0)))),INDEX(Sheet3!$A:$O,MATCH(Sheet1!$E4,Sheet3!$C:$C,0)-1,MATCH(Sheet1!G$3,Sheet3!$A$3:$O$3,0)),"error"))
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