In my Sheet Summary, I am using the formula =SUMIFS(Shipped:Shipped, [Date Manufacturing]:[Date Manufacturing], YEAR(@cell) = 2023) + SUMIFS(Pending:Pending, [Date Manufacturing]:[Date Manufacturing], YEAR(@cell) = 2023) + SUMIFS(Scheduled:Scheduled, [Date Manufacturing]:[Date Manufacturing], YEAR(@cell) = 2023) across four separate sheets. All of the sheets have the same column names. The formula is working for three of the four sheets. On the sheet that it is not working on, it reads "#invalid data type". If I delete the SUMIFS(Scheduled:Scheduled, [Date Manufacturing]:[Date Manufacturing], YEAR(@cell) = 2023) part of the formula, I no longer get the invalid message, but the formula doesn't include the sum of the Scheduled column. There must be a problem with the Scheduled column in this fourth sheet, but I cannot figure out what the issue is. Please help.