Preparing for ACMA’s New Sender ID Rules

Update - ACMA has finalised the Sender ID registration process

ACMA has now finalised the Sender ID registration workflow, and the confirmed sequence differs from the early guidance we received from industry partners. We’ve updated our documentation to reflect ACMA’s finalised process so our clients have the most accurate and current information. 

If you reviewed an earlier version of this guide, please note that the steps have now been aligned with ACMA’s finalised process.

Before you get started: What you need to know

What’s happening

The Australian Communications and Media Authority (ACMA) now requires businesses to register their Alphanumeric Sender IDs (the name that appears as the SMS sender) to prevent scams and spoofing. To continue sending SMS through Reapit, your Sender ID must be registered and approved before 1 July 2026.

To ensure uninterrupted SMS delivery from your Sender ID, two things must happen before 1 July:

1. Reapit must submit your Sender ID to ACMA for registration (this begins 1 May 2026).
2. You must complete ACMA Assist setup and confirm the application ACMA sends you.

Note: Alphanumeric Sender ID registration does not apply to SMS sent from your Own Number in Reapit Sales. This follows a separate registration process detailed here.

Who is ACMA?

ACMA (the Australian Communications and Media Authority) is the government regulator responsible for enforcing SMS scam‑prevention rules. They manage the Sender ID Register and the approval process through ACMA Assist.

Why this matters

Your Sender ID must be approved by ACMA before it can be used to send SMS through Reapit. If it is not approved, messages sent using an unregistered Sender ID will appear as Unverified to recipients.

Key roles in this process

Authorised Business Representative (ABR)

The ABR is the primary contact listed for your business on the Australian Business Register.

Only the ABR can complete the initial ACMA Assist setup.

If unsure who this is, consult your legal or finance team.

Authorised ACMA Assist User

This is either:

• The ABR, or
• Someone the ABR delegates approval authority to within ACMA Assist.

This person will receive ACMA’s email notifications and confirm Sender ID applications.

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Step 1: Reapit submits your Sender ID (Reapit action)

Reapit will submit all Alphanumeric Sender IDs currently in use across Reapit Sales, Reapit Lettings, Reapit PM, and Move Me In to ACMA for registration.

This bulk submission begins 1 May 2026.

Before this, you are encouraged to follow the early preparation steps outlined by ACMA here, which include:

• Ensuring your Sender ID/s meet the valid use case rules
• Updating your authorised contacts on the Australian Business Register (ABR)
• Setting up your myID Digital ID

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Step 2: Set up ACMA Assist (Customer action)

After Reapit submits your Sender ID, ACMA will email your Authorised Business Representative a unique link to access the Register.

Following that link, your ABR (or delegated user) will:

• Create or log in to ACMA Assist
• Complete identity verification via myID
• Complete ABR verification
• Access the Sender ID application submitted by Reapit

👉 SMS Sender ID Register user guide for businesses and organisations | ACMA

👉 Accessing the register for the first time | ACMA  

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Step 3: Confirm the Sender ID application (Customer action)

Inside ACMA Assist:

• You will see the Sender ID application Reapit submitted
• You must confirm the application
• ACMA will then assess and approve or deny it

Your Sender ID is not registered until this confirmation is completed.

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If you’re blocked

I’m not the ABR - what should I do?

Identify your ABR (i.e. the person who manages your business' ABN) and direct them to Step 1 of this guide. They will recieve the communication from ACMA to set up ACMA Assist.

Can the ABR contact delegate approvals?

Yes. The ABR can delegate approval rights to another Authorised ACMA Assist User once the initial ACMA Assist setup is completed. Instructions for approving or delegating access are covered in ACMA’s official user guide: SMS Sender ID Register user guide for businesses and organisations | ACMASMS Sender ID Register user guide for businesses and organisations | ACMA

What happens if I don’t register?

From 1 July 2026, all unregistered Alphanumeric Sender IDs will appear as Unverified in messages sent to recipients.