Symptom or Need

You are experiencing problems sending SMS messages from your account:

• Visible error in Wolkvox Agent: “ Error sending SMS to destination ”.
• When using the API, you receive the message: Error 404 - Not Found.
• SMS messages are not delivered to the recipient.

Context / Scenarios

The new element can appear in different scenarios of your operation:

• Sending SMS from Wolkvox Agent.
• Sending SMS messages from campaigns.
• Consuming the service via API.
• Operations with own telephony or telephony managed by wolkvox.
• Problems related to routes, prefixes, trunks, or integration with SMS provider.

Answer / Solution

Please review these points before escalating the case:

Initial validations

Review the following information before escalating the case to the Wolkvox service desk:

1. Exchange Status: Log in to wolkvox Manager and verify that the minutes exchange is active and has sufficient available balance.
2. Prefixes and Routes: Verify that the configured prefix is correct for the destination.
3. Source tests: If the failure occurs from the Wolkvox Agent, try sending from a Campaign or via the API to rule out that it is a failure of a single sending method.
4. Connectivity : If you encounter a 404 error, verify that the service URL is correct and has not been recently changed. Postman .
5. If the problem persists, gather the following information to escalate to the Wolkvox service desk:

• Name of the affected operation.
• Percentage of impact / Number of positions affected.
• Medium through which the failure occurs (API, Campaign or Wolkvox Agent).
• Screenshot of the error and time the message was sent (HH:MM:SS).

Possible Causes

• The error may occur because the minutes bundle is out of balance, disabled, or expired.
• An integration error occurred with the Provider API.
• This error can occur due to incorrect prefix configuration or an incorrect SMS route.
• API endpoint resolution error (404 Not Found).
• Connectivity problems with the provider.
• Inconsistent configuration between campaign, API and Wolkvox Agent.

Considerations

• The 404 Not Found error usually indicates:
  • That the Endpoint is incorrect.
  • The service is not available.
  • There is an error in the API integration.
  • The URL is invalid or not published.
• Behavior may vary depending on the shipping method used.