# SMS Sender ID Registration & Compliance

<details>

<summary><strong>About the SMS Sender ID Register</strong></summary>

From 1 July 2026, Australian regulations require branded SMS Sender IDs (for example, dealership brand names) to be registered with the Australian Communications and Media Authority **(ACMA)**.

Unregistered Sender IDs may be labelled “Unverified” or blocked by Australian telecommunications providers.&#x20;

Contact Harald participates in the SMS Sender ID Register framework as an Electronic Messaging Service Provider **(EMSP)**.

<br>

</details>

<details>

<summary><strong>What is a Sender ID?</strong></summary>

A Sender ID is the business name displayed at the top of an SMS message instead of a mobile number.

Examples:

* “ABC Motors”
* “ContactHarald”

</details>

<details>

<summary><strong>Who needs to register?</strong></summary>

Any organisation using branded SMS messages sent to Australian mobile numbers must register their Sender IDs before 1 July 2026.&#x20;

</details>

<details>

<summary><strong>Information we may require</strong></summary>

To register a Sender ID on your behalf, we may request:

* Australian Business Number (ABN)
* business/trading name
* trademark evidence (if applicable)
* website/domain ownership evidence
* proof of authorised representative
* valid use case for the Sender ID

</details>

<details>

<summary><strong>Sender ID Requirements</strong></summary>

Sender IDs must:

* be between 2 and 11 characters,
* not contain only numbers,
* not contain “Unverified”,
* and comply with ACMA requirements.&#x20;

</details>

<details>

<summary><strong>How registration works</strong></summary>

1. Customer submits Sender ID request
2. Contact Harald reviews eligibility and documentation
3. Registration request submitted via the ACMA framework
4. Customer completes any required verification steps
5. Sender ID activated once approved

</details>

<details>

<summary><strong>Important dates</strong></summary>

* Registration period opened: 30 November 2025
* Enforcement commences: 1 July 2026

</details>

### Support

For Sender ID registration assistance:\
<support@contactharald.com>&#x20;


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://contactharald.gitbook.io/contact-harald-legals/ask-harry/sms-sender-id-registration-and-compliance.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.