---
title: ".au"
url: "https://help.internetx.com/en/api/epp-au/"
lang: "en"
section: "API reference — EPP API"
breadcrumb: "API reference > EPP extensions > TLD extensions"
updated: "2023-12-29"
---

# .au

## Contact extensions

| Keyword | Occurs | Type | Format | Description |
| --- | --- | --- | --- | --- |
| eligibilityId | 0 - 1 | integer | int32 | The ID number for the **policy reason** field, if applicable. If unknown, use the same ID as the registrant ID. |
| eligibilityIdType | 0 - 1 | enum | [AuEligibilityIdTypeConstants](/en/api/core-au-eligibility-type-constants/) | Corresponds to the eligibility ID that you entered. |
| eligibilityName | 0 - 1 | string |  | This field is usually optional. This depends on the chosen eligibility reason (Policy Reason). If unsure what to enter, use the same data as for the registrant. |
| eligibilityType | 0 - 1 | enum | [AuEligibilityTypeConstants](/en/api/core-au-eligibility-type-constants/) | Eligible organisation type of the registrant. |
| registrantIdType | 0 - 1 | enum | [AuRegistrantIdTypeConstants](/en/api/core-au-registrant-id-type-constants/) | Concerns the registrant ID that you entered in the field registrant id. Possible Values: ACN / ABN / OTHERS |
| registrantId | 0 - 1 | int | int32 | Australian Business Number or Registered Business Number |
| policyReason | 0 - 1 | enum | [AuPolicyReasonConstants](/en/api/core-au-policy-reason-constants/) | Reason for the eligibility. |

## XML example

```
<extension>
	<au:contact xmlns:au="urn:org:domainrobot:ns:contact:au-1.0">
		<au:eligibilityId>acn</au:eligibilityId>
        <au:eligibilityIdType>NSW BN</au:eligibilityIdType>
        <au:eligibilityName>Charity</au:eligibilityName>
        <au:eligibilityType>Company</au:eligibilityType>
        <au:registrantIdType>ABN</au:registrantIdType>
        <au:policyReason>1</au:policyReason>
	</au:contact>
</extension>
```