| Service Implicit |
SMS sent to customers with explicit consent to receive service-related communications. |
To provide necessary information or updates related to a service they have subscribed to (e.g., banking alerts, transaction updates). |
“Dear Customer, Your account has been credited with INR 5000. Available balance: INR 10,000. Thank you for banking with us.” |
- Can only be sent between 9 AM to 9 PM
- Must include an option to opt-out (“STOP”)
- Must not contain any promotional content
- Should not be sent on Do Not Disturb (DND) numbers
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| Service Explicit |
SMS sent to customers who have explicitly opted-in to receive communications from the business. |
To provide necessary information or updates related to a service they have subscribed to (e.g., account information, support messages). |
“Hi John, your service subscription is successfully renewed. Amount charged: INR 500. Thank you for choosing our service.” |
- Can only be sent between 9 AM to 9 PM
- Must include an option to opt-out (“STOP”)
- Must not contain any promotional content
- Should not be sent on Do Not Disturb (DND) numbers
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| Promotional SMS |
SMS sent to customers for marketing purposes to promote products, services, or offers and drive sales or engagement. |
To promote products, services, or offers and drive sales or engagement. |
“Flash Sale! Get 50% off on all items today only. Visit our store or shop online using coupon code SALE50.” |
- Can only be sent between 9 AM to 9 PM
- Must include an option to opt-out (“STOP”)
- Should not be sent on Do Not Disturb (DND) numbers
- Must follow the defined frequency cap for sending promotional SMS
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| Transactional SMS |
SMS sent to customers to facilitate a transaction or provide information they have requested. |
To provide important information related to a transaction initiated by the customer (e.g., order confirmation, OTPs, booking details). |
“Your order #12345 has been confirmed. Estimated delivery date: 15th July. Thank you for shopping with us!” |
- Can be sent 24×7
- Exemption from the National Do Not Call (NDNC) Registry for transactional messages
- Must not contain any promotional content
- Should not be sent on Do Not Disturb (DND) numbers
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