"A Trace Error" points back to the Col A label –I have a feeling there is some syntactical issue with how my formula references the MonthArgument name Description lookup_value (required) The value you want to look up The value you want to look up must be in the first column of the range of cells you specify in the table_array argument For example, if tablearray spans cells B2D7, then your lookup_value must be in column B Lookup_value can be a value or a reference to a cell table_array (required)
How To Troubleshoot Vlookup Errors In Excel