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Sender names control what the customer sees as the SMS source. KarFlows protects sender names so one customer cannot accidentally use another customer’s approved sender.

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Approval flow

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Required customer information

Customers should provide:
  • Sender name: 3 to 11 letters or numbers, no spaces.
  • Sender name description.
  • Sample message content.
  • Company name.
  • Company origin.
  • Company URL.
  • Use case.

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Network status

Sender approval can be tracked by network:
  • Vodacom TZ
  • Tigo TZ
  • Airtel TZ
  • Halotel TZ
  • TTCL

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Send-time validation

Before sending SMS, KarFlows checks:
  1. Sender name belongs to the API token owner.
  2. Sender name is approved in KarFlows.
  3. Gateway/network status is approved.
  4. Customer has SMS balance.
  5. Customer plan allows SMS API access.
If any check fails, KarFlows rejects the request before sending.