Why is this formula returning a FALSE result? It should return the value in B13

=iferror(if(b13="",or(c13="","",if(b13<>""=b13,if(c13<>"",c13,mconcat(b13:c13,";"))))),"")

Is this what you want instead?

=IF(B13<>"",IF(C13="",B13,CONCATENATE(B13&";"&C13)),IF(C13="","",C13))

I downloaded the add-in for the MCONCAT and other functions. It works. I removed the ,"" and still get the same FALSE result. The data that the formula is referencing is just text (although that text is derived from a VLOOKUP). The result in B13 is "Teeofftimes UK" and the result in C13 is "". The result should show "Teeofftimes UK" instead is shows FALSE.

Thanks!

Thank you but that doesn't solve the issue. What I am trying to do is to eliminate the separator ";" in all cases except where there are values in both B13 and C13. This is returning the same result as if I would use MCONCAT(B13:C13,";")

b13 c13 d13
;
Teeofftimes UK Onlineteetimes Teeofftimes UK;Onlineteetimes
Teeofftimes UK Teeofftimes UK;

Can you use this?

=IF(B13<>"",IF(C13="",B13,MCONCAT(B13:C13,";")),IF(C13="","",C13))

You are genius![solved]

@ golfpromal

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