If you do not need to pass the parm1 parameter in the Event Details section of the Workflow Activity record, what is the default method passed in?

In the context of ServiceNow workflows, when you do not explicitly pass the parm1 parameter in the Event Details section of the Workflow Activity record, the system defaults to using gs.getUserID(). This method is specifically designed to retrieve the unique identifier of the currently logged-in user, providing a consistent way to determine the user context for the workflow activity.

Utilizing gs.getUserID() allows the workflow to continue processing in line with the user who initiated the action, which can be critical for ensuring that appropriate permissions and context are applied within the workflow. This method helps maintain the integrity and security of the operations performed within the framework, as it directly relates to the user's identity.

In contrast, gs.getCurrentUser() returns a GlideUser object that represents the current user but does not necessarily focus solely on the user ID. gs.getUserName() retrieves the user's display name, and gs.getEventDetails() provides a structured format of the event-related data but does not directly correlate with the user ID.

Therefore, when the parm1 parameter is not supplied, defaulting to gs.getUserID() ensures that the workflow remains user-centric by accurately identifying which user is associated with the workflow activity.