Definition
Business event groups serve to classify business event types that share the same characteristics or deal with related subject matter such as Language Courses or Data Processing Courses.
A business event group can contain subordinate event groups, such as English Courses or Microsoft Word Courses, which typically contain multiple business event types. Thus, you can create a hierarchical structure of event groups.
Use
The hierarchical structure, starting with event groups and working down, makes your business event catalog accessible and easy to navigate from the user's point of view, and easier to create from your point of view. The business event groups occupy the highest level of this hierarchy.
You could decide to start with the event group Data Processing Courses, for instance. From here, you would work your way down to the individual events and dates.
Business event groups can also be selected as subject areas in the search for business events in the Employee Self-Service Training Center.
Using business event groups to structure your event catalog improves system performance in the dynamic menus. To further improve performance, you can define a virtual business event group as the top node of your event hierarchy. You do so in Customizing for Training and Event Management under Basic Settings ® Dialog Control ® Technical Settings ® Dynamic Menus in the entry SEMIN LROOT.
Structure
You create business event groups in Customizing for Training and Event Management under Business Event Preparation ®
Create business event group or in the Master Data Catalog. You can store the following information for business event groups:
For clarity's sake, we recommend you to define 01/01 of the respective year as the validity start date.
The description you store here is used also for the business event brochure if this business event group is included in the brochure.
The first two attributes are mandatory; all others are optional.
Integration
Business event groups together with event types, event dates, and the relationships that exist between them form a hierarchical structure. You generally maintain these relationships when you create a new object.
In the hierarchy, business event groups occupy the top level. You can make the hierarchy as deep as you want by combining multiple event groups into one higher level group.

It is not mandatory to use business event groups at all. If you decide not to use them, your business event types are classified as Unassigned business event types and the resulting hierarchy is flatter.
In addition, any business event types you create but do not assign to an event group are listed as Unassigned business event types.
Creating relationships between event groups and event types considerably improves system performance.
See also:
Creating a Business Event Group Business Event Catalog Business Event Types Business Event Dates