How To Fix PF020 - Value missing for single key table buffer

SAP Error Message - Details

• Message type: E = Error

• Message class: PF - System parametrization messages in Computing Ctr Mgmt System

• Message number: 020

• Message text: Value missing for single key table buffer

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message PF020 - Value missing for single key table buffer ?

  The SAP error message PF020, which states "Value missing for single key table buffer," typically occurs when there is an issue with the buffering of a single key table in the SAP system. This error can arise due to various reasons, including inconsistencies in the buffer, missing entries, or issues with the configuration of the table.
  Cause:
  
  Missing Entries: The error may occur if the system is trying to access a value in a single key table that has not been buffered or does not exist in the buffer.
  Buffer Inconsistencies: If there are inconsistencies in the buffer due to changes in the underlying table or if the buffer has not been updated correctly, this error can occur.
  Configuration Issues: Incorrect configuration of the table buffering settings in the SAP system can lead to this error.
  Data Deletion: If data has been deleted from the database but the buffer has not been updated, it can lead to this error when the system tries to access the deleted data.
  
  Solution:
  
  Check Buffer Settings: Verify the buffering settings for the table in question. You can do this by going to the Data Dictionary (SE11) and checking the table's technical settings. Ensure that the buffering is configured correctly.
  Refresh Buffer: You can refresh the buffer for the specific table. This can be done using transaction code SM12 to delete any locks and SM04 to check for user sessions. Additionally, you can use transaction SE14 to activate the table and refresh the buffer.
  Check for Data Consistency: Ensure that the data in the database is consistent and that there are no missing entries. You can run consistency checks or use transaction SE11 to display the table and check for missing values.
  Rebuild the Buffer: If the issue persists, you may need to rebuild the buffer. This can be done by using transaction SE14 to activate the table, which will refresh the buffer.
  Check for Updates: Ensure that your SAP system is up to date with the latest support packages and notes, as there may be fixes available for known issues related to buffering.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE14 (Database Utility), SM12 (Lock Entries), and SM04 (User Overview).
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review SAP documentation regarding table buffering and performance optimization to understand how buffering works and best practices for managing it.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.