Communication
WhatsApp and SMS for Schools: DLT and Templates Explained
What schools need to message parents by SMS and WhatsApp: DLT registration, sender IDs, templates, WhatsApp approvals and delivery reports.
Schoolwale team Updated 2 min read
Parents read WhatsApp and SMS far more than email or apps. Sending school messages through these channels properly takes a little setup, which is worth doing once and correctly.
SMS: register on DLT first
In India, business SMS must follow TRAI’s rules on the Distributed Ledger Technology (DLT) platform. The sender (the school or its provider) registers as an entity, registers a sender ID (header), and registers each message template with its fixed wording and variable parts.
Messages that do not match a registered template are blocked by operators, so the wording in your software must match the template exactly.
- Entity registration
- Sender ID (header)
- Templates with variables
- Template ID used for every send
WhatsApp: use approved Business templates
Messages a school starts on WhatsApp, such as an absence alert, use the WhatsApp Business Platform with templates approved by Meta. Each template has a name, a language and numbered parameters filled in for each parent.
Write messages parents can act on
Short, specific and with one action: who, what, when, and a link. "Ananya of Class 5 – A is absent today, 10 Nov" beats a general notice. Offer Hindi or your regional language, and remember Hindi SMS uses Unicode, which fits fewer characters per message.
Track delivery, and never send twice
A delivery log for every message, with its status, provider reference and any error, lets the office answer "I never got it" calmly. Duplicate protection matters too: a re-submitted register should not message parents twice.
Questions
- Do schools need DLT registration to send SMS?
- Yes, business SMS in India must use a DLT-registered entity, sender ID and templates, either the school’s own or its provider’s.
- Can schools send WhatsApp messages to parents automatically?
- Yes, using the WhatsApp Business Platform with approved message templates and parents’ phone numbers on record.
- Can messages be sent in Hindi?
- Yes. Hindi SMS needs its own DLT template, and WhatsApp needs a separately approved Hindi template.