How To Fix AD627 - Cluster fields reinitialized

SAP Error Message - Details

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 627

• Message text: Cluster fields reinitialized

What causes this issue?

You have changed the structure type from POOL to CLUSTER.

System Response

As a result, fields have been invalidated and the pool field default
values will be stored.

How to fix this error?

If you do not wish to change the type, reenter the old type.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AD627 - Cluster fields reinitialized ?

  The SAP error message AD627, which states "Cluster fields reinitialized," typically occurs in the context of SAP's data processing, particularly when dealing with cluster tables. Cluster tables are used in SAP to store data that is logically related but may come from different sources or applications. The error indicates that there is an issue with the initialization of cluster fields, which can lead to data inconsistencies or processing errors.
  Causes:
  
  Data Inconsistency: The error may arise if there is a mismatch or inconsistency in the data being processed, particularly if the data is being read from or written to cluster tables.
  Program Logic Errors: If there are issues in the ABAP code or logic that handles the cluster data, it can lead to reinitialization of fields.
  Database Locking Issues: If multiple processes are trying to access or modify the same cluster data simultaneously, it can lead to conflicts and this error.
  Transport Issues: If there are issues with transporting objects or data between different SAP systems, it can lead to inconsistencies that trigger this error.
  
  Solutions:
  
  Check Data Consistency: Ensure that the data being processed is consistent and valid. You may need to run consistency checks or validation routines.
  Review ABAP Code: If you have custom ABAP programs that interact with cluster tables, review the code for any logic errors or improper handling of data.
  Database Locks: Investigate if there are any database locks that might be causing the issue. You can use transaction codes like SM12 to check for locks.
  Transport Management: If the issue arose after a transport, check the transport logs and ensure that all necessary objects were transported correctly.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error. There may be patches or updates that resolve known issues.
  Debugging: If the error persists, consider debugging the program to identify the exact point of failure and the state of the data at that moment.
  
  Related Information:
  
  Cluster Tables: Understanding how cluster tables work in SAP can help in diagnosing issues related to them. Cluster tables are a special type of table in SAP that store data in a compressed format.
  Transaction Codes: Familiarize yourself with transaction codes like SE11 (Data Dictionary), SE80 (Object Navigator), and SE37 (Function Module) to analyze the data structures and programs involved.
  SAP Community: Engaging with the SAP Community or forums can provide insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.