Okay, after working at this for several hours I'm still stumped. I'm using textjoin to display combined values from Col BF that match numbers in BH but I want to exclude the value in the current row. i.e. for row 2, I want to exclude "CP60" from the results in Col BI and display all other matches. I can't figure out how to filter that current row result out. Any help is greatly appreciated.
=ArrayFormula(TEXTJOIN(", ", TRUE, IF(BH2=$BH$2:$BH$346,$BF$2:$BF$346,"")))
=ArrayFormula(TEXTJOIN(", ", TRUE, IF(BH2=$BH$2:$BH$346,$BF$2:$BF$346,"")))