You send an OTP code to validate a new customer's registration, and then fifteen minutes later, a marketing SMS to announce a special promotion. You are juggling these two types of messages and wondering: which usage should you prioritize based on your goal? What pricing should you expect? How do you stay GDPR compliant? With Octopush, an omnichannel platform, you can centralize your messaging, automate follow-ups, and secure every workflow, all while benefiting from detailed reporting to drive the effectiveness of your campaigns.

Defining marketing SMS and transactional SMS

A marketing SMS is sent to a contact list that has consented to receive your SMS campaigns. For example, you might offer a welcome discount or a cart abandonment reminder via a short, punchy message. A transactional SMS, on the other hand, conveys essential information to an individual: order confirmation, OTPcode delivery, shipping alerts, or appointment reminders. These SMS are considered linked to the fulfillment of an existing service and do not require prioropt-in .

“Marketing grabs attention, transactional provides peace of mind.”

Uses and objectives

Each channel serves a specific purpose. Here are some strategic ways to get the most out of your messaging:

• Sales engagement : boosting sales during promotional campaigns.
• Security and verification : fast delivery of unique codes for identity verification.
• Customer loyalty : invitations to exclusive previews or customer birthdays.
• Customer updates : package tracking and status notifications.

Note: an SMS open rate can reach 98%, a significant advantage for instant communication.

Pricing and business models

Choosing the right plan helps optimize your budget and maximize your ROI. Whether you choose Octopush or another provider, compare these main pricing models:

• Marketing SMS : tiered pricing based on volume (€0.04 to €0.08 excl. tax).
• Transactional SMS : fixed unit cost, often higher (€0.06 to €0.12 excl. tax).
• Monthly subscriptions : access to advanced features (API for routing, reporting on deliverability, A/B testing).

Quick tip: evaluate the cost per SMS and any additional fees (setup, support, extras). Sometimes, a slightly more expensive plan includes personalized support, which is a real asset for refining your campaigns.

GDPR compliance and best practices

Respecting GDPR is not an option, it is a necessity. Your SMS campaigns must be based on:

• an explicit consent (opt-in) for SMS marketing,
• a simple unsubscribe option (STOP sms),
• keeping proof of consent (timestamp, IP),
• the ability for the user to exercise their right to access and delete their data.

Pro tip: keep a consent log for every campaign so you can quickly demonstrate compliance in the event of an audit.

Optimizing your campaigns and notifications

To get the most out of platforms like Octopush, follow these best practices:

• Segment your audience (age, purchase history, location).
• Personalize every message (name, order reference).
• Schedule your sends for times when attention is highest (9–11 AM, 5–7 PM).
• A/B test different hooks to identify which one converts best.
• Automate via API : appointment reminders, stock alerts, status updates.

“A generic SMS is a missed opportunity!”

Common mistakes to avoid

To ensure your performance doesn't suffer, avoid:

• mass messaging without targeting, which leads to rapid disengagement,
• missing legal disclaimers and opt-out options,
• excessive frequency, which irritates your recipients,
• neglecting to track numbers for deliverability.

Quick side note: a poorly crafted SMS can damage your brand image in seconds.

Track and analyze performance

Managing your campaigns requires analyzing these key indicators:

• Delivery rate : the proportion of SMS received out of the total sent.
• Open rate : a major indicator of immediate impact.
• Click-through rate : relevant if your message contains a link.
• Conversion rate : the number of concrete actions generated.

These metrics help you adjust your campaigns and refine your strategy.

Ready to implement your SMS strategy

You now know the differences between marketing SMS and transactional SMS, the core principles of pricing as well as the requirements of GDPR. It is time to segment your database, automate your notifications via Octopush or any other high-performance tool, and manage your campaigns with precision. Launch your optimized and compliant SMS strategy for a seamless and engaging customer experience!