How To Fix /PF1/MSG_EH309 - Communication failure for Parallel Process

/PF1/MSG_EH309 - Overview

• Message type: E = Error

• Message class: /PF1/MSG_EH -

• Message number: 309

• Message text: Communication failure for Parallel Process

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 /PF1/MSG_EH309 - Communication failure for Parallel Process ?

  The SAP error message /PF1/MSG_EH309 Communication failure for Parallel Process typically indicates that there is a communication issue when trying to execute a parallel processing task in SAP. This can occur in various scenarios, such as when using background jobs, parallel processing in reports, or when using the SAP Business Workflow.
  Causes:
  
  Network Issues: There may be network connectivity problems between the application server and the database or between different application servers.
  System Configuration: Incorrect configuration settings for parallel processing in the SAP system can lead to communication failures.
  Resource Limitations: Insufficient system resources (CPU, memory) can cause processes to fail when trying to communicate in parallel.
  Timeout Settings: If the timeout settings for communication are too low, it may lead to premature termination of processes.
  Locks or Deadlocks: If there are locks on the resources being accessed, it can lead to communication failures.
  Transport Layer Issues: Problems in the transport layer, such as issues with RFC