generated: '2026-06-20'
method: derived
source: >-
  Derived from openapi/ component schemas, reference (sys_id) fields, and path
  structure across the ServiceNow catalog; entity/table names confirmed against
  ServiceNow docs.
render: subway/servicenow-subway-map.svg
note: >-
  ServiceNow is table-driven: every record is a row in a table keyed by a 32-char
  hexadecimal sys_id, and reference fields hold the sys_id of a related record.
  Relationships below are the salient cross-entity links implied by the specs.
id_convention:
  key: sys_id
  format: 32-character hexadecimal GUID
  reference_fields: >-
    A field whose value is another record's sys_id (optionally dot-walked and,
    with sysparm_display_value, returned with a display value + link).
entities:
  - name: record
    table: any
    api: openapi/servicenow-table-api-openapi.yml
    description: Generic row in any ServiceNow table (incident, problem, etc.).
    relationships:
      - has_many: attachment
        via: table_sys_id
  - name: attachment
    table: sys_attachment
    api: openapi/servicenow-attachment-api-openapi.yml
    relationships:
      - belongs_to: record
        via: table_sys_id + table_name
  - name: change_request
    table: change_request
    api: openapi/servicenow-change-management-api-openapi.yml
    relationships:
      - has_many: change_task
        via: change_request
  - name: change_task
    table: change_task
    api: openapi/servicenow-change-management-api-openapi.yml
    relationships:
      - belongs_to: change_request
        via: change_request
  - name: cmdb_ci
    table: cmdb_ci
    api: openapi/servicenow-cmdb-instance-api-openapi.yml
    relationships:
      - has_many: cmdb_ci
        via: relationship (parent/child CI relationships)
  - name: contact
    table: customer_contact
    api: openapi/contact-api-openapi.yaml
    relationships:
      - belongs_to: account
        via: account
  - name: trouble_ticket
    table: sn_customerservice_case / incident
    api: openapi/trouble-ticket-openapi.yaml
    relationships:
      - has_many: note
        via: note
      - has_many: related_party
        via: relatedParty
      - has_many: related_entity
        via: relatedEntity
      - has_many: channel
        via: channel
  - name: catalog
    table: sc_catalog
    api: openapi/servicenow-service-catalog-api-openapi.yml
    relationships:
      - has_many: category
        via: catalog
  - name: category
    table: sc_category
    relationships:
      - belongs_to: catalog
        via: catalog
      - has_many: catalog_item
        via: category
  - name: catalog_item
    table: sc_cat_item
    relationships:
      - belongs_to: category
        via: category
      - has_many: catalog_variable
        via: item
  - name: cart
    table: sc_cart
    relationships:
      - has_many: cart_item
        via: cart
  - name: cart_item
    table: sc_cart_item
    relationships:
      - belongs_to: cart
        via: cart
      - belongs_to: catalog_item
        via: item
  - name: order
    table: sc_request
    description: Result of submitting a cart or ordering an item now.
    relationships:
      - has_many: cart_item
        via: request
  - name: import_set
    table: sys_import_set_row
    api: openapi/servicenow-import-set-api-openapi.yml
    relationships:
      - belongs_to: record
        via: transform map target (sys_target_sys_id)