How To Fix APS_CKE_PARSER085 - The key field &1 of the primary data source must remain a key field.

SAP Error Message - Details

• Message type: E = Error

• Message class: APS_CKE_PARSER - CDS Key user tool - AST handler messages

• Message number: 085

• Message text: The key field &1 of the primary data source must remain a key field.

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message APS_CKE_PARSER085 - The key field &1 of the primary data source must remain a key field. ?

  The SAP error message APS_CKE_PARSER085 indicates that there is an issue with the key field configuration in a primary data source within the SAP system. This error typically arises when there is an attempt to modify or remove a key field that is essential for the primary data source's integrity.
  Cause:
  
  Key Field Modification: The error occurs when a user tries to change the definition of a key field in a way that it is no longer recognized as a key field.
  Data Source Configuration: The primary data source may have been incorrectly configured, leading to inconsistencies in how key fields are defined.
  Data Model Changes: Changes in the data model or structure that affect the key fields can trigger this error.
  
  Solution:
  
  Review Key Field Configuration: Check the configuration of the primary data source to ensure that the key fields are correctly defined and have not been altered unintentionally.
  Restore Key Field Status: If a key field has been changed, revert it back to its original status as a key field. This may involve modifying the data source definition in the relevant transaction (e.g., using transaction codes like RSA1 for data sources).
  Check Data Source Dependencies: Ensure that any dependent objects or data models that rely on the primary data source are also correctly configured to recognize the key fields.
  Consult Documentation: Refer to SAP documentation or notes related to the specific data source or module you are working with for any additional guidance or known issues.
  Testing: After making changes, test the data source to ensure that the error is resolved and that data can be processed correctly.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Data Source Management: Familiarize yourself with the data source management tools in SAP, such as the Data Warehousing Workbench, to better understand how key fields are managed.
  Community Forums: Engage with SAP community forums or support channels for insights from other users who may have encountered similar issues.
  
  If the problem persists after following these steps, it may be beneficial to reach out to SAP support for further assistance.