Almost every customer you have carries a phone that can receive a text message. It does not need a data bundle, a smartphone or an app. That simple fact is why SMS remains the backbone of customer communication for banks, retailers, insurers, schools and NGOs across Zambia.
This guide covers what you need to run SMS campaigns well, from building your contact list to reading the results.
Why SMS still works
It reaches everyone. Email needs an inbox and WhatsApp needs data. SMS reaches feature phones and smartphones alike, in town and in rural areas, on every network.
It gets read. People open text messages quickly, usually within minutes. That makes SMS the right channel for anything time-sensitive: payment reminders, appointment confirmations, flash sales and service alerts.
It is short by design. A single message holds 160 characters. That limit forces you to say one thing clearly, which is exactly what a busy customer wants.
Step 1: Build a list you are allowed to message
Your list is the foundation of every campaign. Before you send anything, make sure that:
- every contact gave you permission to message them, and you can show when and how;
- numbers are stored in a consistent format, ideally international (
+260…); - duplicate and invalid numbers are cleaned out.
Consent is not just good manners. Zambia's Data Protection Act of 2021 sets rules for how personal data, including phone numbers, may be collected and used. We cover this in detail in our article on consent and opt-in.
Step 2: Segment before you send
Sending the same message to everyone is the fastest way to train customers to ignore you. Group contacts by what you know about them, such as location, purchase history, product interest or the date they joined, and write for each group.
A Lusaka customer who bought last week needs a different message from a Kitwe customer who has not visited in six months.
Step 3: Write one message with one job
Every SMS should do a single thing: confirm, remind, announce or invite. A strong message has:
- Your name up front, so the reader knows who is talking.
- The value: what they get, or what they need to know.
- One clear action, such as a link, a short code, a number to call or a date to remember.
- A way out, such as "Reply STOP to opt out".
Ballo Store: Your order #4821 is ready for collection at Manda Hill until Sat 5pm. Questions? Call 0211 000 000. Reply STOP to opt out.
Step 4: Choose the right moment
Timing matters as much as wording. Payment reminders work best a few days before the due date and again on the day. Promotions do well late morning and early evening. Avoid sending late at night: it annoys people and drives opt-outs.
For very large sends, schedule ahead so delivery is complete well before the moment that matters, such as before a sale opens or a payment falls due.
Step 5: Measure and improve
Each campaign should teach you something. Look at:
- Delivery rate: how many messages reached a handset. A low rate usually points to old or badly formatted numbers.
- Failure reasons: invalid number, phone switched off, or rejected by the network. Each one calls for a different fix.
- Clicks: if you include a link, track it so you know who acted.
- Opt-outs: a rising opt-out rate means you are sending too often or the content is not relevant.
Getting started with BalloAds
BalloAds brings all of this into one workspace. You can import and segment your contacts, write and schedule campaigns, and follow delivery reports in real time, using the same tools for SMS, WhatsApp and email. If you are new to SMS marketing, start small: one segment, one clear message, one metric to watch. Then build from there.
