Symptom
When attempting to send an outbound SMS, you receive an error that reads Error 10 - Invalid Message.
Applies To
- Outbound SMS
- Message Delivery
- SMPP
Resolution
- Ensure that you have the proper encoding flag for your outbound SMS.
- If you are an SMPP user, ensure that you have the correct UDH.
Cause
This issue can occur when there is an error in the one of the parameters of the message (e.g., wrong encoding flag, or for SMPP users incorrect UDHs). It may also occur when the destination user has disabled the ability to receive messages (e.g., blacklist or Do Not Disturb setup).
Articles in this section
- Adding a New Line in SMS Using Vonage REST API
- What is the minimum/maximum of a Sender ID length?
- What are some best practices for sending social invites through SMS?
- How to Avoid Outbound SMS Rejection
- Message Delivery Failed Error 10 Invalid Message
- Error 8 Network Error
- Vonage SMS Delivery Error Codes and Descriptions
- DLR Error Code 99 General Error
- DLR Error Code 9 Illegal Number
- DLR Error Code 3 Absent Subscriber Permanent