How To Fix /SCMTMS/MC_CON_CACHE051 - Total connection count: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCMTMS/MC_CON_CACHE -

• Message number: 051

• Message text: Total connection count: &1

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCMTMS/MC_CON_CACHE051 - Total connection count: &1 ?

  The SAP error message /SCMTMS/MC_CON_CACHE051 Total connection count: &1 is related to the SAP Transportation Management System (TMS) and typically indicates an issue with the connection cache for the TMS system. This message is often seen in the context of performance issues or connection limits being reached.
  Cause:
  
  Connection Limit Reached: The error suggests that the total number of connections to the TMS system has reached a predefined limit. This can happen if there are too many concurrent users or processes trying to access the TMS system.
  Configuration Issues: The system may not be configured properly to handle the expected load, leading to connection issues.
  Resource Constraints: Insufficient system resources (like memory or CPU) can also lead to connection problems.
  Network Issues: Problems with the network can cause delays or failures in establishing connections.
  
  Solution:
  
  
  Increase Connection Limits: If the connection limit is too low for your usage, consider increasing the maximum number of connections allowed in the TMS configuration.
  
  This can typically be done in the SAP system settings or by adjusting the parameters in the instance profile.
  
  
  
  Monitor and Optimize Usage: Analyze the usage patterns to identify if there are any unnecessary connections or if certain processes can be optimized to reduce the load on the TMS.
  
  Use transaction codes like ST03N (Workload Analysis) to monitor performance and identify bottlenecks.
  
  
  
  Check System Resources: Ensure that the server hosting the TMS has adequate resources (CPU, memory, etc.) to handle the load. If necessary, consider upgrading the hardware or optimizing the system configuration.
  
  
  Review Network Configuration: Check for any network issues that might be affecting connectivity. Ensure that the network is stable and that there are no firewalls or other security settings that could be limiting connections.
  
  
  Restart Services: In some cases, restarting the TMS services or the entire SAP system can help clear up connection issues.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant notes or patches that might address this specific error message or related performance issues.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SCMTMS/CONN for connection monitoring and /SCMTMS/MC for TMS configuration.
  SAP Documentation: Review the official SAP documentation for TMS to understand best practices for configuration and performance tuning.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found effective.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.