Describes the cause and action for error messages.
Error Message(English)：
not grouping dates in pivot table
Grouping Dates
https://www.contextures.com/xlPivot07.html#videogroup
Grouping Numbers
https://www.contextures.com/xlPivot07.html#videonumbers
Problems when Grouping ...
https://www.contextures.com/xlPivot07.html#Problems
Grouping Dates in a Pivot Table VERSUS Grouping ... - Excel Campus
https://www.excelcampus.com/pivot-tables/grouping-dates-pivot-table-versus-grouping-dates-source-dat・・・
How to Change Date Formatting for Grouped Pivot Table Fields ...
https://www.excelcampus.com/pivot-tables/grouped-date-field-formatting/
Excel - pivot table does not group dates - Super User
https://superuser.com/questions/1125762/excel-pivot-table-does-not-group-dates
microsoft excel - Pivot Table : How to group by ...
https://superuser.com/questions/1389485/pivot-table-how-to-group-by-date-if-the-column-headers-are-m・・・
microsoft excel - Pivot table grouping by week ...
https://superuser.com/questions/1288137/pivot-table-grouping-by-week-cant-get-it-to-start-on-monday
Excel collapsing pivot table - or group weeks ...
https://superuser.com/questions/1274961/excel-collapsing-pivot-table-or-group-weeks-months