Short answer: on a phone you can schedule SMS from the Messages app (Android: long-press send → “Schedule message”; iPhone: via the Shortcuts app). WhatsApp has no native scheduling; businesses use a platform like Zapini, which schedules one-off, bulk or recurring sends and delivers them automatically at the chosen date and time.
SMS vs WhatsApp for scheduled messages
- SMS: arrives without internet, but no files or rich replies, and you pay per message.
- WhatsApp: supports images, PDFs, audio and buttons; customers reply in the same chat and everything stays in the history.
How to schedule SMS on your phone
- Android (Google Messages): type the text, long-press send, pick date and time.
- iPhone: in Shortcuts, create a personal time-of-day automation with the “Send Message” action.
How to schedule WhatsApp messages for your business
- Connect your number to Zapini (QR Code or Cloud API).
- Open the conversation or contact list and choose schedule send.
- Set date, time, text and attachments; use variables like the customer’s name.
- For recurring messages (monthly invoice, weekly reminder), use flows with schedules or recurrence.
- Track status: scheduled, sent, delivered and read.
Scheduled message ideas
- Appointment reminders 24 h and 2 h before;
- Invoice due notices with a payment link;
- Birthday messages with a coupon;
- Quote follow-up 2 days later;
- Campaigns to contacts who opted in.
Best practices
- Only message people who opted in, at reasonable hours;
- For large campaigns, use the Cloud API with approved templates;
- Personalize: name and context drive far more replies.
More ideas in the WhatsApp automation guide and 5 automation flows.
Frequently asked questions
Can you schedule messages on WhatsApp?
Not natively, in either WhatsApp or WhatsApp Business. You need a platform connected to your number.
Can I schedule the same message to many contacts?
Yes, with bulk sending — only to contacts who opted in and, at high volume, through the Cloud API.
Does the scheduled message go out if my phone is off?
Yes. The cloud platform sends it; your phone does not need to be on.
Try it yourself
Zapini brings WhatsApp (QR Code or the official Cloud API), AI agents, a Kanban CRM, flows and an API into one platform. Create your account and set up your first flow today.
