"Grouped by" does not work on String field type where maximum length is greater than 255Issue In a list view you cannot use the "Group by" functionality on columns if the String type if their maximum lenght is greater that 255 characters. The "Group by" context menu item is greyed out.ReleaseAll List views and reportsCauseThis is an expected behavior.ResolutionThere is a workaround for this issue, which involves adding the can_group attribute to the affected column of the table. Navigate to System Definition > Dictionary and access the record name you wish to editOpen the record and click on Advanced View under Related Links.In the Attributes field, add 'can_group=true' as the value of the Attributes field (without quotes) and save. Related LinksList type fields require 'Can group' in order to group by | KB0712005