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About SMS Marketing with Mailchimp

by Intuit Updated 3 months ago

Mailchimp’s SMS Marketing is a powerful service that helps you create and manage a text messaging program. Grow your SMS audience, purchase SMS credits, send marketing text messages, and reach your subscribed SMS contacts with a new marketing channel.

In this article, you'll learn about SMS Marketing with Mailchimp.

Things to know

Here are some things to know before you begin this process.

  • SMS Marketing is available as an add-on feature for customers in the United States, the United Kingdom, Australia, and Canada with the Essentials plan or higher.
  • You must be an account Owner, Admin, or Manager to work with SMS Marketing. Learn more about the different user levels in Mailchimp.
  • Before you can send marketing text messages, you need to submit an application and be approved.
  • You need credits to send SMS and MMS (US only) with Mailchimp. To learn more, check out About SMS Marketing Credits.
  • SMS Marketing allows you to set up your program with a single Mailchimp audience.
  • At this time, you can only send text messages to subscribed SMS contacts from the country that’s associated with your SMS Marketing program. For example, if your SMS Marketing program’s sending country is the UK, you can send text messages to subscribed UK SMS contacts.
  • To manage your SMS Marketing program in a different language, change your Mailchimp account's language preferences.
  • If you pause your pricing plan, you won’t be able to access your SMS Marketing program until you unpause.

Definitions

Here are some terms you’ll come across as you use SMS Marketing with Mailchimp.

  • SMS application
    A required Mailchimp administrative process that you must successfully complete to set up your SMS Marketing program with Mailchimp. The steps of an SMS application vary based on sending country.

  • SMS
    A marketing text message sent to a subscribed SMS contact.

  • MMS (Multimedia Messaging Service)
    Multimedia content that is included in an SMS and sent to a subscribed SMS contact (e.g. images or GIF files). MMS is available for US and CA programs.

  • Sender name
    The title you assign to your SMS marketing with Mailchimp. This is often the name of your business, but it can be anything that clearly identifies you to your current and prospective contacts. Your sender name is visible in the text messages you send and in a compliance keyword auto-response. The sender name is required for AU programs.

  • Brand name
    The title of your business that you want to associate with your SMS Marketing program. This is how your business represents itself to the public.

  • Sending country
    The country where your business is located and where you plan to send your text messages from. This is the country you selected on the Sending Country step of your SMS Marketing application.

  • SMS credit
    A unit of payment that determines the number of SMS or MMS (US only) you can send to your subscribed SMS contacts. SMS credits vary depending on your sending country, and they’re calculated according to your Mailchimp account’s payment method on the Billing information page.

  • Rate limit
    The number of individual text messages you can send per minute or per day based on carrier requirements. This only applies to US programs.

  • Throttling
    The act of controlling rate limits and the cadence of SMS sends. This only applies to US programs.

  • Quiet hours
    The hours outside of a certain time range that limit marketing text messages from being delivered to your audience. Quiet hours vary based on sending country requirements.

  • 10DLC
    A 10-digit mobile number that can only be used in the US.

  • Vetting
    A process in which businesses register their brand and messaging program with carriers in order to send marketing text messages in the US. Automatic vetting is given to every customer. Standard vetting may increase the rate and speed of sent messages.

How it works

Short Message Service (SMS) is used to send text messages to mobile phones. With Mailchimp’s SMS Marketing, you can set up a text messaging program for your business, purchase SMS credits, collect SMS opt-ins from contacts, and send marketing text messages to your subscribed SMS contacts who are based in the same country as your sending country. For US programs, SMS Marketing also includes MMS. Use MMS to add an image or GIF to your text messages.

Like email contacts, SMS contacts are stored in your Mailchimp audience. The SMS Marketing column on the contact table displays the subscribed or unsubscribed status of your SMS contacts. Subscribed SMS contacts can request help or opt out of SMS marketing at any time with keyword auto-responses.

To begin the setup process, submit an application.

Part of the application allows you to select a phone number for your SMS Marketing program. This phone number isn’t associated with a specific carrier like a personal phone number, but the format will be consistent with your program’s sending country.

Once your application is approved, you can:

  • Import existing contacts from your sending country who have already opted in to your SMS marketing.
  • Create an email to promote your SMS Marketing program and gather SMS consent from current email subscribers.
  • Use a signup form to acquire new SMS contacts.
  • Use your SMS credits to send text messages to your subscribed SMS contacts. Send immediately outside of your program's quiet hours, or schedule your text message to send at a later time.

Each billing cycle, your monthly SMS credit subscription renews at the same time as your pricing plan. Any unused SMS credits will be forfeited when the new billing cycle begins. The number of SMS credits required depends on the message type, the recipient count, and your sending country. View or manage your SMS credits on the SMS overview page and the SMS Settings page.

SMS Marketing requires consent from a contact before you can send text messages to them. You’re responsible for obtaining this consent in compliance with applicable laws.

Carrier rate limits and throttling (US only)

For US programs, there are 2 factors that impact your sending capabilities with Mailchimp’s SMS Marketing: carrier rate limits and the Russell 3000 Index. These factors don’t apply to UK programs.

T-Mobile’s rate limits are on a per day basis, and AT&T’s rate limits are on a per minute basis. This means that you can send a certain number of SMS or MMS per day or per minute based on the carrier rate limits of your subscribed contacts. MMS are also subject to carrier rate limits and may be slower to deliver.

The Russell 3000 Index is a Dow Jones database that tracks the shares of the 3,000 largest publicly traded companies in the US. Your SMS sends are impacted by whether or not you're on the Index.

Here’s a breakdown of what this means for your US SMS Marketing program.

Public US businesses listed on the Russell 3000 Index can send:

  • 2,400 SMS or MMS per minute to AT&T recipients
  • 200,000 SMS or MMS per day to T-Mobile recipients

Public or private US businesses not listed on the Russell 3000 Index can send:

  • Up to 4,500 SMS and 2,400 MMS per minute to AT&T recipients
  • Up to 200,000 SMS or MMS per day to T-Mobile recipients

SMS sending for public or private US businesses not listed on the Russell 3000 Index is based on brand score.

Brand scoreSMS per minute (AT&T recipients)MMS per minute (AT&T recipients)SMS or MMS per day (T-Mobile recipients)
Very high4,5002,400200,000
High2,4001,20040,000
Mid24015010,000
Entry75502,000

If you exceed the limits, your text messages will enter a queue and send at the next available time. This means of managing carrier rate limits and the cadence of SMS and MMS sends is called throttling. We use throttling to keep your SMS Marketing program compliant.

You can view your program's SMS rate limits on your SMS Settings page.

At this time, AT&T and T-Mobile are the only carriers that require throttling. Other carriers, like Verizon, have rate limits that exceed the throttling threshold which means they won’t impact your sending.

Character limits and message counts

The number of characters in an SMS determines the number of individual text messages required to complete a send. The type of content you send also impacts the message count. Text messages that exceed the character limit for a single message are split into separate, or multipart messages, and they require individual SMS credits.

You can send 2 types of SMS with Mailchimp’s SMS Marketing.

  • Standard message (GSM)
  • Unicode (non-GSM)

Global System for Mobile Communications (GSM) is a standard character set that uses the letters A-Z and numbers 0-9 with some special characters. Unicode includes a larger range of characters. SMS sent with GSM can contain more characters than messages sent with Unicode.

Standard (GSM)

  • 160 characters per 1 SMS
  • 153 characters for multipart sends (2+ SMS)

Unicode (non-GSM)

  • 70 characters per 1 SMS
  • 67 characters for multipart sends (2+ SMS)

If your SMS requires more than 1 text message to send, it'll automatically send as a multipart message with a different character limit. Modern smartphones reassemble multipart messages so that it appears to be 1 message for your recipients.

If you send multipart messages, you’ll need to account for additional SMS credits to complete your send. To learn how to calculate credits for your text messages, check out About SMS Marketing Credits.

If you have a US program, and you want to add multimedia content to your text message, use MMS. MMS have different character limits to consider. MMS is available for US and CA programs.

MMS (US and CA only)

  • 1,600 characters per 1 MMS

View character limits and message counts for your SMS and MMS (US and CA only) in the SMS builder.

Spaces, emojis, and opt-out instructions count towards character limits.

Compliance keywords

Your subscribed SMS contacts can reply to any text message with ‘help’ for more information. To unsubscribe from future SMS marketing, your subscribed SMS contacts can reply with ‘stop,’ ‘cancel,’ ‘end,’ ‘quit,' ‘unsubscribe,’ 'optout,' or 'revoke.' French-speaking contacts can also reply with ‘arret’ or ‘aide’ to unsubscribe or for more information. SMS credits aren’t required to send an automated response to a compliance keyword since these are considered compliance text messages.

Quiet hours

The hours outside of Mailchimp’s specified sending hours are called quiet hours. Set quiet hours to avoid sending text messages when your subscribed SMS contacts may not want to receive them. They also ensure that you send text messages in compliance with telemarketing laws and regulations in the US, the UK, AU, and CA.

For US and CA programs, the default sending hours are 11am-9pm ET. The hours outside of this time frame are the default US and CA quiet hours.

For UK programs, the default sending hours are 9am-8pm BT. The hours outside of this time frame are the default UK quiet hours.

For AU programs, the default sending hours are 12pm-8pm AET. The hours outside of this time frame are the default AU quiet hours.

If you don't make changes to your SMS Marketing program’s quiet hours, the default settings apply. To use custom quiet hours, set your preferred hour range and timezone on the SMS Settings page. If you change your program’s quiet hour settings while you have scheduled or sending text messages, delivery may be impacted.

Disallowed use cases

In order to set up your SMS Marketing program, you must agree to comply with certain standards. SMS Marketing guidelines and regulations prohibit the sending of content related to the following topics.

  • Sex, hate, alcohol, firearms, and tobacco (S.H.A.F.T.)
  • Cannabis, vaping, CBD, or any federally illegal drug
  • Loans
  • Debt collection
  • Gambling
  • Political content

These guidelines are in place to prevent this type of content from reaching inappropriate audiences. Any text message that you send with Mailchimp should be free from these topics.

If your SMS Marketing program doesn’t comply with these guidelines, your account may be suspended or terminated.

Next steps

Now that you know more about Mailchimp’s SMS Marketing, check out these resources to get started.

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