The main title is the title of the job opening. This title is only visible internally and cannot be displayed to the applicant. When a publication is created, the main title is initially transferred to the Position field, but can be changed.

In the application search, application overview and job opening overview it is possible to filter by Position/Main Title. With this filter you can search with parts of a title. Then all results are displayed which contain this letter combination. For example, you can search for "he" and would probably get a lot of results.
It is also possible to filter by Main Title. A selection menu of all titles of all job openings will then be opened.

Reports for the job opening always contain the main title as well.  This corresponds here to the job opening field..