XSOAR’s ingestion pipeline defines a strict order in which raw fetched data is processed, and the Admin Guide explains that Classification determines the incident type based on incoming fields, while Mapping performs the actual transformation of event data into structured incident fields. Mapping profiles define how each field from the integration’s raw JSON (for example, source_ip, username, alert_id) is converted into standard or custom incident fields.

The Mapping Editor allows administrators to select specific fields from the incoming event data and bind them to incident fields used throughout playbooks, layouts, and reports. This ensures normalization of data and consistent schema usage across the SOC.

The documentation makes clear that Mapping is responsible for populating incident field values, whereas Classification only chooses the incident type. Field configuration defines field metadata but does not map values. Layout configuration controls visual presentation only and does not populate fields.

Thus, option B (Mapping) is the function that converts event data into incident field values and is the correct answer according to the ingestion architecture documented in the XSOAR Admin Guide.