Sending bulk SMS campaigns to your customers

Bulk SMS lets a business send the same message — an offer, an announcement, a seasonal update — to a large list of customers at once. Unlike transactional messages, bulk campaigns are promotional by default, which means consent, sender identification, and timing rules apply.

Legitimate enterprise use cases

Audience and consent preparation

Before sending, build the list from customers who explicitly opted in — at checkout, during signup, or through a dedicated marketing consent step. Segment by how recently and how the customer opted in, and keep a record of consent; this is both good practice and a requirement covered in our Saudi SMS compliance guide.

Transactional versus promotional messaging

Not every message to a customer list is "bulk" in the promotional sense. Order confirmations and appointment reminders are transactional even when sent to many recipients over a day — see transactional SMS. True bulk/marketing campaigns are opt-in only, must be clearly identifiable as promotional, and are subject to the do-not-disturb and opt-out rules covered in our compliance guide.

Scheduling and reporting

Plan sends around permitted hours rather than around convenience for the sender, and stagger large sends where the platform supports it to avoid a single burst overwhelming delivery. After sending, delivery reports let you see acceptance and delivery status per recipient, which matters for cleaning your list over time.

Arabic SMS length considerations

Arabic text uses Unicode encoding, which allows roughly 70 characters per segment versus 160 for GSM-7 Latin text. A campaign message that reads naturally in Arabic can easily span two or three billed segments — check message length with our SMS segment calculator before a large send.

Campaign-quality checklist

Sector use cases

Frequently asked questions

What is the difference between bulk SMS and transactional SMS?

Bulk SMS is promotional messaging sent to an opted-in list — offers, announcements, campaigns. Transactional SMS is triggered by a specific customer action (an order, a booking, a verification) and is not marketing content, even when it goes to many customers over a day.

Do I need consent before sending a marketing SMS?

Yes. Promotional SMS in Saudi Arabia should only go to recipients who have given clear opt-in consent, and every message needs a working opt-out path. See our compliance guide for the full picture.

Why does my Arabic campaign message cost more per recipient than expected?

Arabic text uses Unicode encoding, which fits fewer characters per SMS segment than Latin text. A message that looks like "one text" in Arabic can bill as two or three segments — check with our segment calculator before sending at scale.

How is a sender ID for campaigns registered?

Sender ID registration for the Digital Connect platform is handled through the Interkey parent site — see sender ID registration for the process.

Discuss your bulk messaging requirements

Tell us about your audience, message type and campaign workflow.