Quick answer
In India, every commercial SMS must go out with a DLT-registered entity, sender ID and template. So you cannot send business SMS to customers before DLT registration is complete.
What you can do meanwhile
- Set up your account and explore the panel, reports and API documentation.
- Prepare your templates and check them with our free DLT template checker.
- Build your integration with the SMS API or a plugin, so you are ready on day one.
- Start with WhatsApp. WhatsApp Business API messages do not need DLT, so you can go live there while DLT is in progress. See WhatsApp messaging.
How long until you can send?
DLT entity approval usually takes a few working days, and templates a little longer. Read how long DLT registration takes.
More questions
Can I send OTP SMS before DLT approval?
No. OTP SMS also need a DLT-approved entity, sender ID and transactional or service template.
Can I use WhatsApp while DLT is pending?
Yes. WhatsApp Business API messages do not need DLT, so you can start customer messaging on WhatsApp while SMS DLT is in progress.
Can I prepare my API integration before DLT?
Yes. You can build and test your integration logic with the SMS API documentation, then switch on live sending once DLT is approved.
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