How To Fix PFL_API021 - Parameter switch performed on server &1

PFL_API021 - Overview

• Message type: E = Error

• Message class: PFL_API - A1S/CTC-API Error Messages

• Message number: 021

• Message text: Parameter switch performed on server &1

Self-Explanatory Message

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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 PFL_API021 - Parameter switch performed on server &1 ?

  The SAP error message PFL_API021, which states "Parameter switch performed on server &1," typically indicates that a parameter switch has occurred on the specified application server. This can happen for various reasons, often related to system configuration or performance issues.
  
  Cause:
  
  Parameter Changes: The error may occur if there are changes to the instance profile parameters that require a restart of the application server.
  System Load: High system load or resource constraints may trigger a parameter switch to optimize performance.
  
  Configuration Issues: Incorrect or conflicting configuration settings in the instance profile can lead to this error.
  Transport of Copies: If a transport of copies is performed, it may inadvertently change parameters that lead to this error.
  
  
  Solution:
  
  Check Instance Profile: Review the instance profile parameters for the affected server. Ensure that they are correctly set and do not conflict with each other.
  Restart the Server: If parameters have been changed, a restart of the application server may be