In ServiceNow, Business Rules are server-side scripts that execute whenever a record is inserted, updated, deleted, or queried. However, certain actions can be configured without writing any script, using the Business Rule ' s user interface options.
The primary actions that can be configured without scripting are:
Set field values: This allows administrators to specify new values for fields when the Business Rule conditions are met. This is configured in the " Actions " tab of the Business Rule form, where specific fields and their desired values can be set without any scripting.
Add message: Administrators can configure a message to be displayed to the user when the Business Rule executes. This is done by selecting the " Add message " checkbox and providing the desired message text.
Options C (Set field values and write to the system log) and D (Set field values and generate an event) would require scripting. Writing to the system log involves using server-side APIs like gs.log(), and generating an event requires calling event generation methods—both necessitate scripting.
For more detailed information, refer to the official ServiceNow documentation on Business Rules:
servicenow.com