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Invalid message recipient

ERROR: 63024

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For WhatsApp, the message is undeliverable due to the recipient being an invalid user on WhatsApp.

Possible Causes

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For WhatsApp, reasons can include:

  • Recipient phone number is not a WhatsApp phone number.
  • Recipient has not accepted WhatsApp's new Terms of Service and Privacy Policy.
  • Recipient is using an old, unsupported version of the WhatsApp client for their phone.

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