---
title: "ExternalIdentifiers"
url: "https://developers.zinnia.com/apis/policy-service-0-1-0/versions/8306e031-b41c-452a-a7ed-d73d65602086/schemas/ExternalIdentifiers"
---

> Full API specification: https://developers.zinnia.com/apis/policy-service-0-1-0/versions/8306e031-b41c-452a-a7ed-d73d65602086.md

# ExternalIdentifiers

## OpenAPI definition

```yaml
openapi: 3.0.0
info:
  title: Policy Service
  version: 0.0.21
servers:
  - url: https://uat.api.zinnia.io
components:
  schemas:
    ExternalIdentifiers:
      type: object
      properties:
        referenceNumber:
          type: string
          description: The unique payment reference number for all premium-related
            transactions by carrier
        externalTransactionId:
          type: string
          description: The unique ID to identify transaction on carrier side
        externalArrangementId:
          type: string
          description: The unique ID sent by carriers to identify the special
            programs.Carrier-side identifier for the systematic program
```