Note containing field in Time Tracker report options allows you to type in a case insensitive search string. Only items with user notes containing the search string are included in report. Filtering report by content in notes
For example, suppose we want to only see items with notes containing a reference to a support ticket or issue #6782. We enter 6782 in the Note containing field and generate a report. An example report below lists items with each note containing the string "6782". Report filtered by note content Time Tracker User Guide