WhatsApp Messages Rejected with Error 1340: Outside of Allowed Window
Symptom
WhatsApp messages are getting rejected with Error 1340, "Outside of the allowed window—This message is sent outside of the allowed response window."
Applies To
- Messages API
Resolution
Ensure that you are using a templated message.
Cause
This error occurs if a free-form or non-templated WhatsApp message is sent outside the Customer Care Window (24 hours after an end-user sends a message to the customer). WhatsApp requires that any message that is sent to a user for the first time, or that is outside the Customer Care Window be a templated message, therefore, freeform or non-templated messages will be rejected with error code 1340 (WhatsApp error code:470).
Additional Information
For more information, see Facebook's WhatsApp Messages Guidelines.
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