How To Fix B1664 - Table buffer in server synchronized after conversion

SAP Error Message - Details

• Message type: E = Error

• Message class: B1 - ALE group messages

• Message number: 664

• Message text: Table buffer in server synchronized after conversion

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message B1664 - Table buffer in server synchronized after conversion ?

  The SAP error message B1664, which states "Table buffer in server synchronized after conversion," typically occurs when there is a mismatch or inconsistency in the table buffer between the application server and the database after a table structure change (like a conversion or modification). This can happen during activities such as data dictionary changes, table structure modifications, or after a transport of changes.
  Cause:
  
  Table Structure Changes: If a table's structure has been modified (e.g., adding or removing fields), the buffer may not be updated correctly across all application servers.
  Transport Issues: If changes were transported to the system, and the buffer was not synchronized properly, it can lead to this error.
  Database Locking: If there are locks on the database that prevent the buffer from being updated, this can also cause the error.
  Inconsistent Buffer State: The buffer state may be inconsistent due to various reasons, including system crashes or improper shutdowns.
  
  Solution:
  
  
  Refresh the Buffer: You can refresh the table buffer to ensure that it is synchronized with the database. This can be done using transaction code SE14 (Database Utility) to adjust the table and refresh the buffer.
  
  Go to transaction SE14.
  Enter the table name that is causing the issue.
  Choose the option to "Adjust" or "Delete Buffer" to refresh the buffer.
  
  
  
  Check for Locks: Use transaction SM12 to check for any locks on the database that might be preventing the buffer from being updated. If there are locks, you may need to release them.
  
  
  Restart Application Servers: Sometimes, simply restarting the application servers can help in synchronizing the buffers.
  
  
  Check Transport Logs: If the issue arose after a transport, check the transport logs for any errors or warnings that might indicate what went wrong.
  
  
  Database Consistency Check: Perform a consistency check on the database to ensure that there are no underlying issues that could be causing the buffer to be out of sync.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SE14 (Database Utility), SM12 (Lock Entries), and SM21 (System Log) for troubleshooting.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if it is affecting production systems.
  Documentation: Review SAP documentation related to table buffering and database management for best practices and troubleshooting steps.
  
  By following these steps, you should be able to resolve the B1664 error and ensure that your table buffers are synchronized correctly.