What SMS and WhatsApp Marketers Can Learn From Email (from the 5 trillion emails Bird has analyzed)

• SMS and WhatsApp deliver far higher engagement than email, but marketers often underinvest because they rely on familiar email habits.
• Email’s decades of performance data offer proven playbooks for opt-ins, segmentation, personalization, and message hygiene that map directly to mobile-first channels.
• Confirmed opt-ins and ongoing list maintenance are essential for SMS/WhatsApp due to cost per message and strict compliance rules.
• Personalized 1-to-1 messaging — based on behavior, location, and past purchases — drives significantly higher conversion on mobile channels.
• SMS and WhatsApp are ideal for collecting fast UGC: reviews, short answers, feedback, and media.
• Automation (welcome flows, cart abandonment, post-purchase, birthdays) has an outsized impact because mobile channels have extremely high open and read rates.
• Interactive elements — surveys, structured questions, chatbots — mimic email engagement loops but with higher completion rates on mobile.
• A/B testing remains essential even with limited character counts; early brand identifiers, timing, and tone can significantly shift performance.

• Why should SMS and WhatsApp marketers study email best practices?Because email has decades of proven engagement patterns that directly translate to mobile-first channels with minimal adaptation.
• Why is confirmed opt-in so important for SMS and WhatsApp?These channels have higher regulatory standards and higher sending costs, making clean, consented lists critical for ROI and compliance.
• How can personalization improve mobile campaign performance?Personalized promotions, behavior-based triggers, and tailored product recommendations increase clickthrough and conversions dramatically.
• What kinds of user-generated content work well in SMS and WhatsApp?Short reviews, quick replies, survey responses, and simple photo/video submissions that require minimal friction.
• Why is automation so impactful in mobile messaging?High open rates amplify automated flows like abandoned cart, welcome series, promotions, and post-purchase updates — driving consistent revenue.
• What makes WhatsApp and SMS better for feedback collection than email?Instant visibility and low-effort response mechanics lead to higher completion and faster insights.
• What elements should marketers A/B test in SMS and WhatsApp?Opening lines, brand identification placement, emojis, timing, CTA structure, sentiment, and link position.

You can’t copy-and-paste your email marketing strategy into your SMS and WhatsApp campaigns and expect everything to work out.

Each channel requires a marketing strategy tailored to its unique capabilities and limitations. But with a little fine-tuning, you’ll find that many best practices of email marketing can be adopted into your SMS and WhatsApp marketing strategies.

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Email best practice**

How it applies to SMS and WhatsApp

Confirmed opt-ins

Use double/confirmed opt-in to stay compliant and reduce wasted spend

List maintenance

Remove inactive contacts regularly to maintain engagement and control costs

1:1 personalization

Personalize by name, location, behavior, or past purchases

User-generated content

Collect quick reviews, short replies, and survey responses

Automation

Trigger messages for welcome, cart, shipping, birthdays, and promos

A/B testing

Test opener, timing, emojis, links, and CTA placement

Here are six examples to get you started:

1. Prioritize confirmed opt-ins and messaging list maintenance Confirmed opt-ins are just as important for SMS and WhatsApp as they are for email. SMS, in particular, is subject to stringent regulations governing opt-ins and opt-outs, which means your messaging platform needs to offer automated processing tokeep your business compliant.

Nicci recommends that all marketers use a double opt-in or confirmed opt-in when adding contacts to their subscriber lists. She also urges marketers to avoid spammy messaging tactics that can undermine their customer engagement efforts.

"You can have the best marketing strategy in the world but if the way you obtain your contacts is poor, you’re just going to land your emails in the spam folder — or your SMS messages might get blocked." Nicci Joyce, Deliverability Strategist at Bird.

Email, SMS, and WhatsApp messaging already share a lot of connective tissue. As artificial intelligence becomes more widely integrated with digital marketing, the best practices for these distinct messaging channels are likely to become even more intertwined.

“By 2030, SMS, WhatsApp, and email will be incorporating AI to create hyper-personalized experiences for their lists,” Nicci says. “Everything is going to become so hyper-personalized, and it’s going to generate a lot more opens, clicks, and revenue.”

But AI-powered messaging will also introduce new marketing challenges. “Privacy laws and compliance are going to become even more difficult to follow,” Nicci says. “The rules are going to become more strict on what you can and can’t send.”

With user-friendly messaging templates, no-code automation tools, precise audience segmentation capabilities, and built-in compliance controls, Bird’s messaging platform offers everything marketers need to build and optimize a mobile-first messaging strategy.

Our email, SMS, and WhatsApp solutions can help you efficiently build and manage campaigns that deliver better outcomes while making your life easier. See for yourself —request a demo today.

Various digital communication interfaces accompanied by marketing messages across email, WhatsApp, and messaging apps.