Error Codes Reference
Looking for SMPP protocol-level and MO (Mobile-Originated) delivery error codes instead? See the Standard SMPP Error Code List.
Success Codes
Authentication & Account Errors
Message & Content Errors
Group & Template Errors
System & Processing Errors
Data & Validation Errors
Gateway & Routing Errors
Error Response Format
All error responses follow this standard format:Handling Errors
Common Error Handling Patterns
Best Practices
- Always check ErrorCode: Never assume success without checking the error code
- Handle common errors: Implement specific handling for frequent errors (001, 021, 015)
- Log errors: Keep logs of error responses for debugging
- Retry logic: Implement retry logic for transient errors (033, 034)
- User feedback: Provide meaningful error messages to end users

