I am trying to sum a column {Invoice Amount} when the {Month Paid} in that row is misspelled. I have accounted for each month of the year as well as if the cell is blank. I want to sum everything else in the column that isn't already included on the list. The month is manually entered so I want to make sure that if it is not correct that it appears on the Error Report.
I have tried SUMIFS({Invoice Amount}, {Month Paid}, <> "July", {Month Paid}, <> "August"…………, {Month Paid}, <>"") but I cannot get it to work.
Any help would be appreciated.