How To Fix START_MESSAGES018 - Connection error. Contact your System Administrator.

SAP Error Message - Details

• Message type: E = Error

• Message class: START_MESSAGES -

• Message number: 018

• Message text: Connection error. Contact your System Administrator.

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message START_MESSAGES018 - Connection error. Contact your System Administrator. ?

  The SAP error message "START_MESSAGES018 Connection error. Contact your System Administrator." typically indicates that there is a problem with the connection between the SAP application and the database or the application server. This can occur due to various reasons, and here are some common causes, potential solutions, and related information:
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP application server and the database server.
  Database Server Down: The database server may be down or not reachable.
  Configuration Issues: Incorrect configuration settings in the SAP system or database connection parameters.
  Firewall Restrictions: Firewalls may be blocking the necessary ports for communication between the SAP application and the database.
  Resource Limitations: The database server may be experiencing resource limitations (e.g., memory, CPU) that prevent it from accepting new connections.
  User Authentication Issues: The user credentials used to connect to the database may be incorrect or have insufficient permissions.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the SAP application server and the database server is stable and functioning. You can use tools like ping or traceroute to diagnose network issues.
  Verify Database Server Status: Check if the database server is up and running. You may need to restart the database service if it is down.
  Review Configuration Settings: Verify the database connection parameters in the SAP system (e.g., database host, port, user credentials) to ensure they are correct.
  Check Firewall Settings: Ensure that the necessary ports for database communication are open in the firewall settings.
  Monitor Database Performance: Check the performance metrics of the database server to identify any resource bottlenecks. If necessary, optimize the database or increase its resources.
  Validate User Credentials: Ensure that the user credentials used for the database connection are correct and have the necessary permissions to access the database.
  
  Related Information:
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  System Logs: Review the system logs (e.g., developer traces, application logs) for more detailed error messages that may provide additional context for the connection issue.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  
  If the issue persists after trying the above solutions, it is advisable to contact your system administrator or SAP support for further assistance.