GoHighLevel SMS Compliance & A2P Registration: Getting Your Texts Delivered in Australia (2026)

If you send SMS from GoHighLevel and your texts are quietly disappearing, arriving late, or getting your number flagged, you are not imagining it. Carriers and messaging platforms have spent the last few years tightening how business text traffic is handled, and unregistered or non-compliant senders are the first to get filtered. For Australian agency owners and business owners, this is a double problem: you have to satisfy the technical registration that the carriers demand, and you have to satisfy the local rules that ACMA enforces under the Spam Act 2003. Get either wrong and your appointment reminders, follow-ups and offers simply do not land.

The good news is that GoHighLevel, through its Twilio/LeadConnector phone system, gives you everything you need to run compliant, high-deliverability SMS once it is configured properly. This guide walks through what A2P 10DLC registration actually is, how it flows through a GHL sub-account, the Australian consent and identification rules you must follow, and how to build Workflows that respect opt-outs and quiet hours. This is practical guidance from day-to-day GHL administration, not legal advice, so treat the compliance sections as a starting point and confirm anything account-critical with your own adviser.

Why your texts get filtered or never delivered

SMS deliverability failures rarely come with a clear error message. A message shows as sent in your Conversations view, but the recipient never sees it. Behind the scenes, several things can cause this: your sending number has not been registered for application-to-person (A2P) traffic, the message content trips a carrier spam filter, or your sending patterns look like unsolicited bulk messaging. Shared or unregistered numbers are throttled hard, and repeat offenders get blocked outright.

The three biggest technical causes are an unregistered brand or campaign, a mismatch between your registered use case and what you actually send, and content that looks like spam (link shorteners, all-caps, aggressive sales language). Layer the Australian legal requirements on top of that and it becomes clear why so many GHL users struggle: a message can be perfectly legal under the Spam Act and still be filtered by a carrier, or technically deliverable but non-compliant with ACMA. You need both boxes ticked.

What A2P 10DLC is and how it works through GHL/Twilio

A2P 10DLC stands for Application-to-Person messaging over 10-digit long codes. In plain terms, it is the framework that mobile carriers use to identify legitimate business senders and to police the traffic flowing over standard local numbers. When you send SMS from a GoHighLevel sub-account, you are sending through LeadConnector, which is built on Twilio infrastructure. That means your traffic is subject to the same registration expectations as any other A2P sender.

Registration has two layers. First is the brand — this is your business identity: legal name, business number, address and contact details. Second is the campaign — this describes the type of messages you send (for example, appointment reminders, customer care, or marketing) and includes sample message templates and an explanation of how you collect consent. Carriers approve the brand, then approve each campaign, and only then is your dedicated number trusted to send at proper throughput. Australian numbers and use cases have their own vetting nuances, but the brand-then-campaign structure is the model to understand.

Why a dedicated number matters

Register a dedicated number to your sub-account rather than relying on a shared pool. A dedicated number tied to an approved brand and campaign builds a consistent sender reputation, which is what carriers reward with better delivery. Mixing marketing and transactional traffic across an unregistered number is a fast route to filtering.

The registration steps inside a GHL sub-account

Registration happens in the sub-account settings, under Phone Numbers and the Trust Center / A2P area. Work through it in order rather than jumping ahead, because each step depends on the previous one being approved.

Step 1: Complete your business (brand) profile

Enter your legal business name exactly as registered, your ABN or company number, registered address, website and a contact email. Accuracy matters — mismatches between what you enter and public records are the most common reason a brand submission stalls. This is the brand registration layer.

Step 2: Submit your campaign / use case

Choose the use case that matches your traffic (for example, mixed marketing plus customer care, or low-volume). Provide two or three sample message templates that reflect what you will genuinely send, and describe your opt-in process — how a contact agrees to receive texts. If you run automated sequences such as appointment reminder workflows, describe that traffic honestly here so your registered use case matches reality.

Step 3: Attach a dedicated number and verify

Once the brand and campaign are approved, link a dedicated number to the campaign. Send a test message and confirm it delivers to a real handset. Keep the confirmation details on file, because if you ever need to update templates or add a second use case, you will resubmit through the same flow.

Australian rules: the Spam Act 2003 and ACMA

In Australia, commercial electronic messages — including SMS — are governed by the Spam Act 2003, which ACMA enforces. The Act sets three core obligations that every message you send from GHL must satisfy: consent, identification, and a functional unsubscribe. These are separate from the carrier registration above; A2P keeps carriers happy, the Spam Act keeps the regulator happy.

Express versus inferred consent

Consent can be express or inferred. Express consent is where the person has directly agreed to receive messages — ticking an opt-in box, submitting a form that clearly states they will be texted, or replying to confirm. Inferred consent is narrower and riskier: it can arise from an existing business relationship or where someone has conspicuously published their number without a statement that they do not want marketing. As a rule, build your SMS programme on express consent. It is cleaner, easier to evidence, and far safer if ACMA ever asks how you obtained a contact's agreement.

Sender identification

Every commercial message must clearly identify who is sending it and include accurate contact details. In practice, put your business name in the message body or a recognisable sender ID so the recipient immediately knows who is texting. Anonymous or misleading sender information breaches the Act.

Functional unsubscribe

Every marketing message must offer a working, low-cost way to opt out, and you must action opt-out requests promptly. The standard for SMS is a STOP reply. GoHighLevel handles inbound STOP natively by setting the contact to DND for that channel, but you are responsible for making sure your Workflows respect it and that you never re-add someone who has opted out.

Capturing and storing consent in GHL

Consent is only useful if you can prove it. The practical approach in GoHighLevel is to capture consent at the point of collection and stamp it onto the contact record so it travels with them. Use a Form or survey with a clear, unticked opt-in checkbox that states what the person is agreeing to receive. When they submit, write the outcome to a dedicated custom field (for example, "SMS Consent" = Yes with a date/time) and apply a tag such as sms-opted-in.

Those two elements — a custom field for the consent value and date, plus a tag for easy segmentation — let you build every downstream Workflow around who has actually agreed. If you use a Conversation AI SMS bot to qualify or book leads, make sure the conversation itself captures and records consent before any marketing follow-up begins, rather than assuming a reply equals permission to market indefinitely.

Building compliant Workflows

A compliant SMS Workflow does two jobs beyond sending the message: it respects opt-outs and it respects the clock. Start every marketing Workflow with a filter or condition that only proceeds if the contact holds your sms-opted-in tag or consent custom field, and is not marked DND. This stops accidental sends to people who never agreed or who have already opted out.

Opt-out handling

GoHighLevel sets a contact to DND when they reply STOP, which prevents further automated SMS on that channel. Reinforce this by adding an opt-out trigger or a wait-for-reply branch that removes the opt-in tag and stops any active sequences the moment a STOP-style reply is detected. Never build a Workflow that re-tags or re-enrols opted-out contacts.

Quiet hours

Texting at 11pm annoys recipients and increases spam complaints, which hurts deliverability. Use the Workflow's window/quiet-hours settings so messages only send during reasonable local hours — a common choice is roughly 8am to 8pm in the contact's timezone. For genuinely transactional messages such as a missed-call text-back, an immediate reply is expected and appropriate; reserve strict quiet hours for marketing sends.

Message content that avoids filtering

Even a registered number sending to consented contacts can get filtered if the content looks like spam. Keep language natural and specific. Identify your business early in the message. Avoid public link shorteners — use a branded or full domain instead. Skip all-caps words, excessive punctuation and phrases carriers associate with promotions ("FREE!!!", "ACT NOW"). Keep opt-out language clear ("Reply STOP to opt out"). Personalise with custom field merge fields rather than sending identical blasts, and make sure your registered sample templates genuinely reflect what you send — a mismatch between approved templates and live traffic undermines the whole registration.

Common mistakes to avoid

• Sending marketing SMS before completing A2P brand and campaign registration on the sub-account.
• Relying on inferred consent for cold contacts instead of capturing clear express opt-in.
• Failing to store consent source and timestamp, leaving no way to prove agreement to ACMA.
• Omitting business identification, so recipients cannot tell who is texting them.
• Building Workflows that ignore DND status or re-enrol contacts who replied STOP.
• Blasting identical, promotional-sounding messages with link shorteners and all-caps that trip spam filters.
• Using a shared number for mixed marketing and transactional traffic instead of a dedicated, registered one.

Many of these overlap with the wider automation errors covered in our roundup of common CRM automation mistakes — deliverability and clean automation go hand in hand.

If you want your GoHighLevel account set up for compliant, high-deliverability SMS in Australia, book a strategy call with the HL Growth Partner team.

Book Your Strategy Call →

Frequently asked questions

Do I need A2P 10DLC registration if I only send from Australia?

Yes. A2P registration is about identifying legitimate business senders to carriers, and GoHighLevel's LeadConnector/Twilio system applies this framework to your traffic regardless of where you are based. Skipping it leaves your messages throttled or filtered, so complete the brand and campaign registration in your sub-account before you rely on SMS.

What is the difference between express and inferred consent under the Spam Act 2003?

Express consent is a direct, clear agreement to receive messages — an opt-in checkbox or a confirming reply. Inferred consent is narrower and arises from an existing business relationship or a conspicuously published number without a no-marketing statement. Build your SMS programme on express consent because it is far easier to evidence if ACMA asks how you obtained agreement.

How does GoHighLevel handle STOP and opt-outs?

When a contact replies STOP, GoHighLevel sets them to DND on the SMS channel, which blocks further automated texts. You should reinforce this by adding opt-out branches in your Workflows that remove the opt-in tag and stop active sequences, and by never re-enrolling opted-out contacts. Honouring opt-outs promptly is both a Spam Act requirement and good for deliverability.

Where should I store SMS consent in GoHighLevel?

Capture consent at the point of collection, usually via a Form with an unticked opt-in box, then write the outcome to a dedicated custom field including the date and source, and apply a tag such as sms-opted-in. This gives you a provable record on the contact and a clean segment to build compliant Workflows around.

Why are my texts still getting filtered after registration?

Registration fixes the carrier-identity problem, but content and behaviour still matter. Filtering often continues because of spam-like content — link shorteners, all-caps, aggressive sales language — or because your live messages do not match your registered sample templates. Clean up your content, include clear business identification, respect quiet hours, and make sure what you send reflects your approved use case.