How To Fix 42639 - Connection error

SAP Error Message - Details

• Message type: E = Error

• Message class: 42 - Information Workbench

• Message number: 639

• Message text: Connection error

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 42639 - Connection error ?

  The SAP error message 42639, which indicates a "Connection error," typically arises when there are issues with the connection between the SAP system and the database or other external systems. Here are some common causes, potential solutions, and related information for this error:
  Causes:
  
  Network Issues: Problems with the network connection, such as firewalls blocking access or network outages.
  Database Unavailability: The database server may be down or not reachable due to maintenance or other issues.
  Configuration Errors: Incorrect configuration settings in the SAP system or database connection parameters.
  Authentication Issues: Problems with user credentials or permissions that prevent successful connection.
  Resource Limitations: The database server may be overloaded or running out of resources (e.g., memory, connections).
  Version Compatibility: Incompatibility between the SAP application and the database version.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the SAP application server and the database server is stable and operational. Use tools like ping or traceroute to diagnose connectivity issues.
  Verify Database Status: Check if the database server is up and running. If it is down, restart the database or contact the database administrator.
  Review Configuration Settings: Double-check the connection parameters in the SAP system (e.g., database host, port, user credentials) to ensure they are correct.
  Check User Permissions: Ensure that the user account being used to connect to the database has the necessary permissions and is not locked or expired.
  Monitor Resource Usage: Use monitoring tools to check the resource usage on the database server. If it is overloaded, consider optimizing queries or increasing resources.
  Update Software: Ensure that both the SAP application and the database are updated to compatible versions. Check for any patches or updates that may resolve known issues.
  
  Related Information:
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Logs: Review the application and database logs for more detailed error messages that can provide insights into the root cause of 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 problem persists after trying the above solutions, it may be necessary to escalate the issue to your IT support team or SAP support for further assistance.