The error code 0x00000045 translates to “ESME_RSUBMITFAIL” in the Short Message Peer-to-Peer (SMPP) protocol, which is commonly used for SMS communication. This error indicates a generic failure during a Short Message (SM) submission process.

Here’s a breakdown of the causes, potential solutions (mostly relevant for developers or those managing SMS gateways), and additional resources:

Causes:

• Network Issues: Network connectivity problems between the Short Message Service Center (SMSC) and the device trying to send the SMS can cause submission failures.
• SMSC Overload: The SMSC might be overloaded and unable to handle the SMS submission request at that moment.
• Incorrect SM Parameters: Errors in the SMS content, destination number format, or other parameters within the submission request can lead to failures.
• Firewall Restrictions: Firewalls might be blocking communication between the SMS-sending device and the SMSC.

Troubleshooting Steps (for developers or SMS gateway managers):

These steps are primarily intended for developers debugging SMS applications or those managing SMS gateways. If you’re not involved in SMS development or management, consider contacting your mobile carrier or SMS service provider for further assistance.

• SMSC Logs: Consult the logs on the SMSC for detailed error messages related to the specific submission failure. These logs might provide more insights into the cause of the problem.
• Network Connectivity Checks: Verify that there are no network connectivity issues between the SMS-sending device and the SMSC.
• SM Parameter Validation: Double-check the SMS content, destination number format, and other parameters within the submission request to ensure they comply with the SMSC’s specifications.
• Firewall Rules: Review firewall configurations to ensure they don’t block communication between the SMS-sending device and the SMSC.

Additional Considerations:

• Temporary Issue: In some cases, the ESME_RSUBMITFAIL error might be a temporary glitch. Retrying the SMS submission after a short delay might be successful. However, implementing retry logic with appropriate backoff mechanisms is crucial to avoid overwhelming the SMSC with repeated requests.
• Mobile Carrier or SMS Service Provider: If you’re using a third-party SMS service provider or your mobile carrier’s network for SMS delivery, contact their support for assistance with troubleshooting the error.

Additional Resources:

• SMPP Error Codes – smpp.org: https://smpp.org/smpp-error-codes.html
• How can I resolve stopcode 0x00000045? – Microsoft Community (This discussion might be unrelated to SMPP, but it highlights the importance of checking with your service provider): https://learn.microsoft.com/en-us/troubleshoot/windows-client/performance/stop-error-or-blue-screen-error-troubleshooting

Remember:

If you’re not a developer or managing an SMS gateway, contacting your mobile carrier or SMS service provider is the recommended course of action. They can investigate the issue from their end and provide further assistance specific to their network or service.