Describes the cause and action for error messages.
Error Message(English)：
sumif does not equal blank
Excel formula: Sum if cells are not equal to | Exceljet
https://exceljet.net/formula/sum-if-cells-are-not-equal-to
Add Cells Based on Blank / Not Blank Criteria - Excelchat
https://www.got-it.ai/solutions/excel-chat/excel-tutorial/sumif/blank
SUMIFS (not blank, and othe conditions) - Stack Overflow
https://stackoverflow.com/questions/37837261/sumifs-not-blank-and-othe-conditions
Excel VBA to SUMIF Range only if Range is not completely ...
https://stackoverflow.com/questions/50178531/excel-vba-to-sumif-range-only-if-range-is-not-completel・・・
Excel Countif Not equal to string length of zero
https://stackoverflow.com/questions/23701470/excel-countif-not-equal-to-string-length-of-zero
Excel Sum if not Null String
https://stackoverflow.com/questions/35085386/excel-sum-if-not-null-string
How do I count not equal to wildcard characters in Excel?
https://stackoverflow.com/questions/11289778/how-do-i-count-not-equal-to-wildcard-characters-in-exce・・・
Excel SUMIF Not Blank Cells | Tips
https://www.exceltip.com/tips/excel-sumif-not-blank-cells.html
Using a Blank cell as a Criteria in Excel Sumifs | Tips
https://www.exceltip.com/tips/using-a-blank-cell-as-a-criteria-in-excel-sumifs.html