How To Fix QI164 - Inter-process communication error

SAP Error Message - Details

• Message type: E = Error

• Message class: QI - Notifications for interface modules for connecting subsyst.

• Message number: 164

• Message text: Inter-process communication 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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message QI164 - Inter-process communication error ?

  The SAP error message QI164, which indicates an "Inter-process communication error," typically arises in the context of Quality Management (QM) processes. This error can occur due to various reasons, including issues with the communication between different SAP processes or components, network problems, or configuration issues.
  Causes of QI164 Error
  
  
  Network Issues: Problems with the network can disrupt communication between different SAP instances or between the SAP application and the database.
  
  
  Configuration Errors: Incorrect settings in the SAP system configuration can lead to communication failures. This includes settings related to the Quality Management module or other integrated modules.
  
  
  System Load: High system load or resource constraints can lead to timeouts or failures in inter-process communication.
  
  
  Database Issues: Problems with the database, such as locks or performance issues, can also lead to communication errors.
  
  
  Transport Layer Issues: If there are issues with the transport layer (e.g., RFC connections), it can cause inter-process communication errors.
  
  
  Software Bugs: Occasionally, bugs in