How To Fix CACSCHECK204 - Field &1 is not the last key field in table &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CACSCHECK - Messages from the Checks Area

• Message number: 204

• Message text: Field &1 is not the last key field in table &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CACSCHECK204 - Field &1 is not the last key field in table &2 ?

  The SAP error message CACSCHECK204 indicates that a specific field (denoted as &1) is not the last key field in the specified table (denoted as &2). This error typically arises in the context of data modeling or when defining database tables in the SAP system, particularly when working with Customizing or ABAP Dictionary objects.
  Cause:
  
  Key Field Order: In SAP, the order of key fields in a table is significant. The last key field is often used for certain operations, such as sorting or indexing. If a field that is expected to be the last key field is not positioned correctly, it can lead to this error.
  Table Definition Issues: The error may occur if there are inconsistencies in the table definition, such as incorrect field positioning or misconfiguration in the data model.
  Custom Development: If you are working with custom tables or structures, the error may arise from the way the key fields are defined in your custom development.
  
  Solution:
  
  Check Table Definition: Go to the Data Dictionary (transaction SE11) and check the definition of the table &2. Ensure that the field &1 is indeed the last key field in the key field list.
  Rearrange Key Fields: If &1 is not the last key field, you may need to rearrange the key fields in the table definition. Move &1 to the end of the key field list if it is appropriate for your data model.
  Activate Changes: After making changes to the table definition, make sure to activate the table to apply the changes.
  Review Related Objects: If the table is used in other objects (like views, indexes, or programs), ensure that those objects are also updated accordingly to reflect the changes made to the table structure.
  
  Related Information:
  
  Transaction Codes: 
  
  SE11: Data Dictionary for checking and modifying table definitions.
  SE14: Database Utility for managing database objects.
  
  
  Documentation: Refer to SAP Help documentation for guidelines on defining key fields in database tables.
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to this error message or provide additional context.
  
  If you continue to experience issues after following these steps, consider reaching out to your SAP Basis or ABAP development team for further assistance, as they may have more insights into the specific configuration of your SAP environment.