30 SMS opt-in examples and compliant templates

Confused about what actually counts as proof that a customer opted in to receive your business text messages? 

Maybe your 10DLC registration application was rejected, and you’re not sure why. Or perhaps you’ve read other SMS compliance guides and walked away more frustrated than informed.

We may not be qualified to give legal advice (or play lawyers on TV), but we’ve gathered some of the best SMS opt-in templates to steer you in the right direction. We also provide some use case-specific examples you can draw from.

Here’s a no-nonsense look at compliant SMS opt-in examples so your campaigns will be approved and you can get back to texting customers quickly.

Key terms to know for SMS compliance

Before we jump in, here are key terms you should know:

• Opt in: Getting consent to message a recipient. For a list of contacts you intend to message, this is typically done through an opt-in form.
• Opt out: A customer asks to be removed from your subscriber list. If they choose, they can opt back in later.
• Single opt-in: A user opts into your campaign through a web form, email, or checkbox.
• Double opt-in: A user opts into your message campaign, then opts in again (usually via text or email).

• Transactional texts: These are messages designed to inform rather than persuade, such as shipping updates or appointment confirmations. They’re typically triggered when customers take an action like making a purchase on your website. Order confirmation, two-factor authentication, and password resets fall into this category. Since they’re not marketing anything to customers, they don’t require double opt-in.
• Promotional texts: These are marketing campaigns that include discounts, flash sales, promotions, coupons, and more. You need written SMS consent per regulations to protect consumers from spam. Double opt-in is a good way to cover all your bases.
• Implied consent: If a customer initiates an SMS conversation, your business has implied consent and can respond to them as long as your message is relevant to the conversation.
• Express written consent: A customer agrees to receive texts for a specific purpose when they provide their mobile number. You can record consent via phone call, direct text, web form, or even a piece of paper.
• SHAFT regulations: SHAFT stands for ‘Sex, Hate, Alcohol, Firearms, and Tobacco/Vaping.’ These are highly regulated SMS categories — any message pertaining to them requires a shortcode. With Quo (formerly OpenPhone), you can’t send messages promoting SHAFT content.
• 10DLC: This stands for 10-digit long code, which allows you to send messages with better deliverability and compliance. We wrote a full guide to A2P 10DLC compliance, but if you just want the SparkNotes, it uses virtual local numbers to connect with individual recipients.
• Campaign: A group of business messages designed to reach a specific goal. For SMS marketing, this could be something like customer satisfaction surveys. 
• Call to action (CTA): A section of 10DLC registration where you describe how customers opt in to messaging campaigns. For promotional messages, this could be something like, ‘Customers check a box on a web form after entering their number to receive texts.’ 
• TCR: This stands for The Campaign Registry, which is the organization responsible for authorizing 10DLC campaigns. Quo can help you navigate this process and ensure deliverability in the US and Canada.

How to prove SMS consent opt-in for A2P 10DLC registration

When you complete A2P 10DLC registration with your virtual phone provider, you need to indicate how your contacts opt in (and by opt-in, we mean they give you explicit consent to send them text messages). 

For Quo customers, this is under “How do you collect consent to send text messages?” For other providers, this may be labeled under Call to Action (CTA). 

Your options include: 

• Verbal consent: Exactly what it sounds like. If you record calls for compliance reasons, you can ask them to confirm their consent to receive SMS messages.
• Physical form: Customers indicate their consent on physical paper. Be sure to keep a copy for your records. You can use a paper form for SMS opt-in after having an in-person conversation with a customer.
• Text: Customers initiate the first text to your business, sometimes with an SMS keyword (which we’ll cover later). Just keep in mind all future messages must stay on topic. If your contact requests a quote, for example, you can’t start sending marketing messages without consent.
• Web form: A web form prompts users to enter their mobile phone number and opt in to text messages. Keep in mind that the checkbox for opting in must be selectable by the user and should not be preselected.
• QR code: You can use a QR code to send customers to a form where they opt in to your marketing list. This is best paired with double-opt-in.*

*OpenPhone does not support mass texting marketing lists and does not have an option for using a QR code to show that a contact has opted in to your text messages.

What you need to include in the call-to-action form

Any method of obtaining consent — whether it’s a verbal consent script, physical form, or web form — must clearly explain the following details to ensure customers fully understand what they’re agreeing to:

• An overview of the product or service being promoted or discussed via text messaging
• The phone number(s) that messages will be sent from
• The company name or representative initiating the communication in the first message
• Transparent opt-in language, including any applicable messaging or data fees the customer might incur
• A privacy policy that complies with messaging regulations, explicitly stating that mobile data will not be shared with third parties or affiliates for marketing or promotional purposes. Information may be shared with subcontractors only for operational support, such as customer service. Additionally, any opt-in data will be excluded from all unrelated use cases. If you need more help putting together a policy, check out our SMS privacy policy template.
• Relevant terms and info, such as how recipients can opt out and who to contact for customer support.

Not following these legal requirements could mean losing your privileges to send SMS in the future.

What about proving consent?

In addition to providing opt-in information, you may need to prove how you gather consent with a screenshot or script. If the way you collect consent can’t be verified, your registration may be rejected.

What you need to include in a compliant SMS opt-in text

After a contact subscribes to your campaign, you must send an opt-in text message that includes: 

• The program name or product description
• Customer care contact information (like a toll-free number, 10-digit telephone number, or HELP command instructions)
• How to opt out
• A disclosure that the messages are recurring and the frequency of the messaging 
• Your “message and data rates may apply” disclosure 

Let’s look at some templates you can start using today.

Single opt-in example texts

Single opt-in is perfectly acceptable for campaigns that don’t include marketing messages. Welcome texts, appointment reminders, and alerts fall under this category.

You can capture single opt-in consent verbally, through a form, or with a QR code. 

These basic confirmation messages have all the nuts and bolts you need for SMS opt-in compliance:

Confirmation messages after verbal opt-in

If your company asks for single opt-in consent during calls, you can send one of these texts to confirm next steps:

Double opt-in text message examples

Double opt-in is required if you’re sending SMS marketing texts, though it’s generally a good practice in almost any situation.

It also applies to digital subscriptions, like filling out a web form or a pop-up on your site. 

You need to send two messages: one introducing your company and one including the particulars (like message frequency, for example).

Here are some examples with both steps to get you started:

HIPAA-compliant confirmations

If you’re a healthcare company working under HIPAA, you need to let patients know that SMS isn’t always secure.

Here are a couple of ways to make this clear:

17 opt-in examples by use case

If you don’t want your 10DLC application to be rejected, you need to create compliant opt-in messages for every campaign. Remember, any text, written, or web form opt-in requires terms and conditions and a privacy policy. 

Fortunately, this doesn’t have to be complicated.

Here are 17 examples for four different departments.

Customer service opt-in examples

You can use these templates in customer service scenarios, like tracking a ticket number or confirming a shipping date.

1. Verbal opt-in example

TCR and other third-party entities that review 10DLC registrations typically want to see the kinds of conversations that happen when a customer opts in with your business, like in the following example:

Customer service rep: “If it would be helpful, [business] can send SMS messages providing real-time updates on the status of your ticket. If you’re interested, say YES, and I’ll send a confirmation text.”

Customer: “Yes, sure.”

Customer service rep: “Great! We will send you a confirmation text shortly to confirm your enrollment.”

2. Web form opt-in example

If you’re using a web form message to collect opt-ins for appointment reminders and other conversational texts, here’s an example of complaint language:

“Check this box to receive SMS messages regarding your recent order. Read the terms and privacy policy here: [URL]. Up to 5 messages per month, msg and data fees may apply. Reply STOP to cancel and HELP for help.”

3. Paper form opt-in example

If you’re collecting opt-ins through a paper form, here’s sample language you can use for customer service-related texts:

“Would you like to receive customer service texts from [business]? We will not send you messages without your consent. Signing this confirmation form indicates you agree to receive [use case] text messages from [business]. You may reply STOP at any time to cancel or call us at [phone number]. You may request a copy of our privacy policy and terms at any time.”

4. Keyword campaign opt-in examples

A keyword campaign — sometimes called a text-to-join campaign — invites people to text your business first. You typically need implied consent, but remember that marketing campaigns require double opt-in.

“Text [keyword] to [number] to receive updates on orders and shipping from [business].”

5. Mobile QR code opt-in example

Mobile QR code scans are a great way to get SMS opt-ins in person. You can use this example text on your flyer:

“Scan this QR code to register your product. First, open your phone’s camera app. Then click the generated link.”

Keep in mind that if the QR code leads to a web form, it needs to meet the requirements for the forms mentioned above.

Sales opt-in examples

You can use these examples to help customers opt in to sales messages, such as getting a quote or requesting a demo.

1. Verbal opt-in example

This example is for when your team applies for A2P registration, as the TCR and other third-party entities reviewing your application want to see how part of an example conversation goes when potential customers opt in to receiving texts from your company. 

Sales rep: “Our sales team can put together a proposal and send it back to you ASAP. If you’re interested, we can send SMS messages with your quote, proposal, and other collateral. Say YES, and I’ll send the confirmation text.”

Customer: “Yes, please!”

Sales rep: “Excellent! Expect a confirmation text confirming your enrollment very soon.”

2. Web form opt-in example

You can use this opt-in language on a web form when offering product info, quotes, or other sales-related texts:

“Get a quote from [business] today. Check this box to receive messages from our sales team, and we can send a copy of your quote via text. Message frequency varies, and data rates may apply.”

Make a copy of this SMS-compliant opt-in form for your website so users can subscribe to SMS updates and notifications from your company.

If you’re an Quo customer, you can send an automatic text message after someone fills out a Jotform using the Zap below:

Check out our guide to the OpenPhone Zapier integration for more information. 

3. Paper form opt-in example

Use this example text on a paper form to collect opt-ins for promotional or sales-related messages:

“Signing this agreement authorizes [business] to send SMS messages to your number for sales purposes. Message frequency varies, and data rates may apply. Please sign and date the bottom of the form to indicate you’d like to hear from us. You may request a copy of our privacy policy and terms at any time. Replying to our messages with STOP will cancel your subscription. You may also call us directly at [number].”

4. Keyword campaign opt-in examples

Keyword campaigns are useful for larger companies with short codes. Here is an example from Twilio:

Like with other opt-in forms, you need to include the following language: 

“Text [keyword] to [number] to [complete action]. Message and data rates may apply. Message frequency varies. Text STOP to [number] to cancel. Text HELP to [number] for help. Read full terms and privacy policy here: [URL].” 

Marketing opt-in examples

As mentioned, brands need express written consent before sending SMS marketing campaigns. The best way to do this is by having customers opt in — with a web form, verbally, or a QR code — and then confirm their consent via text.

1. Verbal opt-in example

Verbal opt-in is the most challenging method for verifying marketing messages. However, it’s still acceptable if you provide sufficient details for the TCR and its third-party reviewers about the normal communication between your business and customers. 

Try saying something like this:

Business support rep: “Thanks for calling us today. We’re enhancing our communication to keep you informed about special offers and discounts via text messages. Would you like to opt in to receive SMS notifications from us?”

Customer: “Yes, I do, sounds great.”

Business support rep: “Excellent choice! You’ll receive a confirmation text for your enrollment very soon.”

Confirmation text after verbal opt in

We suggest sending a confirmation text after a customer verbally opts in and then using the customer’s reply text as a confirmation.

Once they’ve consented over the phone, you can send a message like this:

“Thanks for signing up to receive text notifications about [topic] from [business]. Reply YES to confirm your preferences. Text STOP to cancel and HELP for help. Message and data rates may apply. Read our terms and privacy policy here: [URL].”

2. Web form opt-in example

Web forms make it easy to passively collect opt-in requests. This example from Sephora is a great way to start:

Sephora uses double-opt-in messages since the campaign is marketing-related:

3. Paper form opt-in example

A visitor at your store can fill out a physical form, providing their phone number and consenting to your texting campaign.

Here’s a good example from the San Diego Health and Human Services Agency (HHSA):

Fill out form on DocHub

4. Keyword opt-in example

Customers can opt into marketing messages without a form with keywords. It’s also an easy way to confirm double opt-in, like in this example from Papa John’s:

Papa John’s also uses double opt-in messages to send promotional texts:

5. Mobile QR code opt-in example

You can use QR codes to link to an online form, initiate a text message, or open an opt-in webpage.

If you’re redirecting to an online form, it must be live before completing your 10DLC registration.

Here’s an example from Amazon’s Share a Smile Campaign:

Internal communication opt-in examples

These examples are for situations where you’re texting employees or staff for things like shift changes, company announcements, or internal alerts. Even if your audience is internal, you still need consent to stay compliant.

1. Verbal opt-in example

If you’re collecting opt-ins during a team meeting or onboarding session, here’s how to document it:

“Would you like to receive text updates about shift changes, schedule reminders, or internal announcements? Standard message rates may apply. You can opt out anytime by replying STOP.”

Then document the employee’s consent in writing (e.g., a signed form, digital acknowledgment, or meeting notes).

2. Email opt-in example

You can use this when sending an internal email to request SMS permission:

Subject: Stay updated — opt in for company text alerts

“Want to get important updates like schedule changes or urgent alerts via text? Click the link below to opt in. Message and data rates may apply. You can reply STOP to unsubscribe at any time.”

[Opt-in URL here].

3. Google form example

You can use this wording in a Google Form collecting phone numbers for internal messaging:

“Would you like to receive internal communications via SMS? This may include schedule updates, shift alerts, or company-wide announcements. Message and data rates may apply. You can opt out at any time by replying STOP.”

☐ Yes, I consent to receiving internal SMS messages at the number provided.

5 best practices for SMS consent and compliance

As tempting as it is to jump straight into your TCR application, you should double-check your opt-in process to avoid a surprise rejection.

Here are some SMS opt-in best practices to improve your customer experience:

1. Send an opt-in confirmation text

Once a customer opts in to your campaign, you should send a confirmation message to set their expectations.

If you don’t send an initial message within a reasonable period (typically 24-48 hours), you’ll need to reconfirm their consent in the first message you send.

For example, you may want to say:

“Hey [name]! To confirm your subscription to [business] SMS messages, reply YES. To opt out, reply STOP. Message and data rates may apply. Read our terms and privacy policy here: [URL].”

As always, be sure to include opt-out language to keep your campaign compliant.

Other SMS opt-out examples

Here are a few other ways to explicitly provide opt-out instructions at the end of your confirmation text:

• Reply STOP to unsubscribe
• To opt out of receiving texts from us, reply STOP
• If you no longer wish to receive texts from us, reply STOP

If you’re an Quo customer and one of your contacts opts out, we automatically send them a message confirming they’ve successfully opted out.

2. Get consent for each campaign 

Different campaigns require different SMS opt-in messages. If you send promotional and transactional text messages, you need to get consent for each campaign separately.

Also: customers consenting to one type of campaign doesn’t allow you to send messages from other brands or companies. For example, if you own a soap-making business and a dog-walking business, you can’t cross-promote marketing messages without express consent for each.

3. Avoid generic link shorteners

Trying to save space by shortening your links? Don’t use generic link generators. Spammers love using shared public URL shorteners, so most US carriers automatically block messages containing bit.ly or tiny.url links.

You can shorten links by: 

• Removing https:// and www from the URL (like openphone.com)
• Signing up for a messaging service offering custom link shortening
• Shrinking the body copy to make space for the link

4. Be aware of forbidden messaging categories 

We’ve already covered SHAFT messages, which refer to highly regulated subject matter. But we haven’t yet covered forbidden messaging, which includes even more sensitive content.

With Quo (formerly OpenPhone), you’re forbidden from sending texts that promote:

• Get-rich-quick schemes
• Illegal items and substances
• Debt forgiveness and collection
• Third-party lead generation services
• Risky financial services (like payday loans)

Even if you have written consent, these are still forbidden messaging categories and not a fit for Quo.

5. Keep a record of SMS opt-ins

Unwanted text messaging has become a hot-button issue, which means even as a small business, the cost of noncompliance is steep. Class-action lawsuits can cost you thousands of dollars, inevitably impacting your brand image and reputation.

In case a dispute arises with new subscribers, you should keep proof of opt-in consent for each customer — even once they’ve opted out.

Quo workspace owners can easily bulk export all their message logs in case a dispute arises. 

Make SMS compliance simple with Quo (formerly OpenPhone)

SMS compliance can feel like navigating a minefield, and running afoul of the TCPA could jeopardize your SMS privileges.

Thankfully, most of the basics are common sense: get explicit consent from contacts, optimize your messages with disclosures, and build a solid opt-in/opt-out process so recipients know what to expect. If you’re sending promotional messages, use double opt-in to double-check recipient consent.

Keep in mind that SMS compliance may change at any time, so keep an eye out for major updates.

Read our guide on SMS compliance and learn best practices to ensure you can keep texting customers without interruption.

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