> ## Documentation Index
> Fetch the complete documentation index at: https://docs.superoffice.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Get Duplicate Rules

> Retrieve all available duplicate rules for contact



## OpenAPI

````yaml /openapi/rest/openapi-v3-Contact.json get /api/v1/Contact/DuplicateRules
openapi: 3.0.0
info:
  version: v1-REST
  title: SuperOffice REST API v1
  description: SuperOffice REST API - Contact
  contact:
    name: SuperOffice DevNet
    url: https://docs.superoffice.com/en/api/index.html
    email: sdk@superoffice.com
servers:
  - url: http://localhost:56350
  - url: https://localhost:56350
security: []
tags: []
externalDocs:
  description: >-
    The SuperOffice DevNet Community has more documentation, examples, and
    discussion forums.
  url: https://community.superoffice.com/en/developer/
paths:
  /api/v1/Contact/DuplicateRules:
    get:
      tags:
        - Contact
      summary: Get Duplicate Rules
      description: Retrieve all available duplicate rules for contact
      operationId: v1ContactEntity_GetDuplicateRules
      parameters:
        - name: Accept-Language
          in: header
          description: >-
            Convert string references and multi-language values into a specified
            language (iso2) code.
          required: false
          schema:
            type: string
        - name: SO-Language
          in: header
          description: >-
            Convert string references and multi-language values into a specified
            language (iso2) code. Overrides Accept-Language value.
          required: false
          schema:
            type: string
        - name: SO-Culture
          in: header
          description: >-
            Number, date formatting in a specified culture (iso2 language) code.
            Partially overrides SO-Language/Accept-Language value. Ignored if no
            Language set.
          required: false
          schema:
            type: string
        - name: SO-TimeZone
          in: header
          description: >-
            Specify the timezone code that you would like date/time responses
            converted to.
          required: false
          schema:
            type: string
        - name: SO-AppToken
          in: header
          description: >-
            The application token that identifies the partner app. Used when
            calling Online WebAPI from a server.
          required: false
          schema:
            type: string
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/SuperOffice.CRM.Services.DuplicateRule'
            text/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/SuperOffice.CRM.Services.DuplicateRule'
            application/xml:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/SuperOffice.CRM.Services.DuplicateRule'
            text/xml:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/SuperOffice.CRM.Services.DuplicateRule'
            application/json-patch+json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/SuperOffice.CRM.Services.DuplicateRule'
            application/merge-patch+json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/SuperOffice.CRM.Services.DuplicateRule'
      security:
        - SuperOffice_Password: []
          SuperId_Authentication: []
components:
  schemas:
    SuperOffice.CRM.Services.DuplicateRule:
      description: "Describes one duplicate rule to be used to find similar entries\r\n<para />\r\nCarrier object for DuplicateRule."
      type: object
      properties:
        Name:
          description: Identifying name for rule
          type: string
        DisplayName:
          description: Short name of rule to display to user
          type: string
        DisplayTooltip:
          description: Description of the rule
          type: string
        IsActive:
          description: >-
            Indicating if a rule is current active, and should included in the
            duplicate detection
          type: boolean
        TableRight:
          $ref: '#/components/schemas/SuperOffice.CRM.Security.TableRight'
        FieldProperties:
          description: >-
            Field property dictionary mapping field names to field access
            rights.
          type: object
          additionalProperties:
            $ref: '#/components/schemas/SuperOffice.CRM.Security.FieldProperty'
    SuperOffice.CRM.Security.TableRight:
      description: "Wraps a table right together with an explanatory reason.\r\nCode can indicate why access is restricted."
      type: object
      properties:
        Mask:
          type: string
        Reason:
          type: string
    SuperOffice.CRM.Security.FieldProperty:
      description: >-
        Class holding properties like field length, field type about a field in
        the carrier.
      type: object
      properties:
        FieldRight:
          $ref: '#/components/schemas/SuperOffice.CRM.Security.FieldRight'
        FieldType:
          type: string
        FieldLength:
          format: int32
          description: ''
          type: integer
    SuperOffice.CRM.Security.FieldRight:
      description: "Wraps the field right together with an explanatory reason.\r\nAlso adds logical operators to the field rights so that they can be easily combined."
      type: object
      properties:
        Mask:
          type: string
        Reason:
          type: string

````

## Related topics

- [Get Duplicate Rules](/en/api/reference/restful/rest/project/get-duplicate-rules.md)
- [SuperOffice.WebApi.Data.Contact GetDuplicateRulesRequest](/en/api/reference/webapi/SuperOffice.WebApi.Data.Contact_GetDuplicateRulesRequest.md)