WhatsApp Bulk Message Sender for Opt-In Updates
Send business updates, reminders, and notifications to your opted-in contacts in one go. No API key. No developer needed. Built for responsible business communication.
No credit card required · 3-day free trial
How bulk WhatsApp sending works in MessageKro
1. Upload contacts
Import your opted-in contact list via CSV or add contacts manually. Only send to people who have agreed to receive messages from you.
2. Compose your message
Write your message or pick a saved template. Use [Name] or [Amount] placeholders to personalise each message automatically.
3. Schedule or send
Send immediately or schedule for a specific date and time. MessageKro handles delivery even when you're away.
4. Track delivery
See delivery status for each contact in your dashboard. Know what was delivered, read, or needs a follow-up.
Business use cases for bulk WhatsApp messages
All of these should only be sent to contacts who have explicitly opted in.
Event & webinar updates
Send a bulk reminder to all registered attendees one day before your webinar or event.
Appointment reminders
Remind all patients or clients booked for the next day in one scheduled bulk send.
Payment reminders
Send a polite payment reminder to all customers with outstanding invoices at the same time.
Order status updates
Notify all customers whose orders are ready for pickup or have been shipped.
Promotional offers (opt-in only)
Share seasonal offers or discount codes with your opted-in loyalty customers.
Re-engagement
Reach out to customers who haven't visited recently with a personalised check-in message.
Safety & compliance
Built for responsible bulk sending
Bulk messaging without consent is spam. MessageKro enforces opt-in only sending so your team can communicate responsibly.
Opt-in contacts only
Only send to contacts who have agreed to receive messages from you. No cold outreach, ever.
Built-in rate limiting
Helps prevent message flooding so recipients are not overwhelmed.
Anti-spam checks
Automated checks flag suspicious patterns before messages go out. Spam is blocked before it starts.
Compliance first
Designed around WhatsApp's terms of service. Responsible business communication, built in.
FAQ
Frequently asked questions
Related MessageKro tools
Bulk WhatsApp Sender Without API
No API setup required — connect with a QR scan
WhatsApp Message Scheduler
Schedule messages to go out at the right time
WhatsApp Automation for Small Business
Automate routine customer communication
WhatsApp Follow-Up Automation
Follow up with leads and customers automatically
Start sending bulk WhatsApp updates today
Connect your WhatsApp in minutes. Upload your opt-in contacts and start your first bulk send.
No credit card required · 3-day free trial