Describes the cause and action for error messages.
Error Message(English)：
pivot cannot group selection
Grouping Pivot Table Data. How to Group so you don't get: Cannot ...
https://www.ozgrid.com/Excel/grouping-pivot-tables.htm
microsoft excel - "Cannot group that selection" error when ...
https://superuser.com/questions/484616/cannot-group-that-selection-error-when-creating-pivot-table
pivot table - Cannot group field in Excel ...
https://superuser.com/questions/1263925/cannot-group-field-in-excel-pivottable
pivot table - Grouping non-numeric/time ...
https://superuser.com/questions/1171924/grouping-non-numeric-time-categories-in-pivottables
Excel - pivot table does not group dates
https://superuser.com/questions/1125762/excel-pivot-table-does-not-group-dates
microsoft excel - Grouping values in a Pivot Table ...
https://superuser.com/questions/863710/grouping-values-in-a-pivot-table-of-data-containing-blanks
"Cannot group that selection" error in Excel pivot tables -
https://thesmartmethod.com/cannot-group-that-selection-error-in-excel-pivot-tables/
How to Group Excel Pivot Table Data - Contextures
https://www.contextures.com/xlPivot07.html
PivotTable Grouping Doesn't Work | A4 Accounting
https://a4accounting.com.au/pivottable-grouping-doesnt-work/