DT064 - Structure change at field level (convert table &)

SAP Error Message - Details

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 064

• Message text: Structure change at field level (convert table &)

What causes this issue?

The structure of the table changed at field level. This change requires
a conversion of the table. This situation can occur for example if the
data type or field length of the domain upon which the field is based
was changed. A conversion is also generally necessary if the key of the
table changed.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Convert the table using the Database Utility (SE14).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT064 - Structure change at field level (convert table &) ?

  The SAP error message DT064, which indicates a "Structure change at field level (convert table &)," typically arises during the process of modifying a database table or structure in the SAP system. This error can occur when there are inconsistencies or issues related to the data dictionary objects, particularly when a field in a structure or table is altered, and the system is unable to reconcile these changes with existing data or references.
  Causes of DT064 Error
  
  
  Field Modification: Changes made to the fields of a structure or table, such as changing the data type, length, or attributes, can lead to this error if the system cannot automatically adjust the related database objects.
  
  
  Inconsistent Data Dictionary: If there are inconsistencies in the data dictionary, such as missing or outdated references, this can trigger the error.
  
  
  Active Database Objects: If there are active database objects (like views, indexes, or foreign key relationships) that depend on the structure being modified, the system may not allow the change.
  
  
  Transport Issues: If the changes were transported from another system and not properly adjusted in the target system, this can lead to inconsistencies.
  
  
  Solutions to DT064 Error
  
  
  Check for Active Objects: Before making changes to a structure or table, check for any active database objects that depend on it. You may need to deactivate or adjust these objects before proceeding.
  
  
  Adjust Data Dictionary: Use transaction codes like SE11 (Data Dictionary) to check the structure or table definition. Ensure that all references and dependencies are correctly defined.
  
  
  Rebuild or Adjust Dependent Objects: If there are views or indexes that depend on the structure, you may need to rebuild or adjust them after making changes to the structure.
  
  
  Use the Transport Organizer: If the changes were transported, ensure that the transport request is complete and that all objects are correctly imported into the target system.
  
  
  Check for Consistency: Use transaction SE14 (Database Utility) to check the consistency of the database objects. This can help identify any inconsistencies that need to be resolved.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide guidance on handling structure changes.
  
  
  Backup and Restore: If the changes have caused significant issues, consider restoring from a backup if available, or consult with your SAP Basis team for assistance.
  
  
  Related Information
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE14 (Database Utility), and SE80 (Object Navigator) for managing and troubleshooting data dictionary objects.
  SAP Notes: Regularly check for SAP Notes related to data dictionary changes and error messages, as they can provide specific guidance and solutions.
  Documentation: Review SAP documentation on data dictionary management and best practices for making changes to structures and tables.
  
  By following these steps and understanding the underlying causes, you can effectively address the DT064 error in your SAP system.