Occasionally, you might encounter a DND (Do Not Disturb) error even when sending purely Transactional or OTP messages. This can happen if the message content is approved under the Service Explicit or Promotional SMS category on the respective DLT (Distributed Ledger Technology) platform. Messages in these categories are not delivered to numbers registered under DND, as per TRAI (Telecom Regulatory Authority of India) guidelines.
To resolve this issue, ensure that your Transactional or OTP content is approved under the Service Implicit or Inferred category on the DLT platform. This category allows delivery to DND-enabled numbers for legitimate transactional purposes. For further assistance, please review your DLT settings or contact our support team.
Note: TRAI permits individuals to activate DND on their mobile numbers to restrict unwanted messages.