How To Fix FDT_CP_MSG427 - Missing result AST in Operation with ID: '&1' and Segment: '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_CP_MSG -

• Message number: 427

• Message text: Missing result AST in Operation with ID: '&1' and Segment: '&2'

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_CP_MSG427 - Missing result AST in Operation with ID: '&1' and Segment: '&2' ?

  The SAP error message FDT_CP_MSG427 indicates that there is a missing result AST (Abstract Syntax Tree) in an operation within the context of the SAP Fiori Data Transformation (FDT) framework. This error typically occurs when the system is unable to find the expected output structure for a specific operation, which can lead to issues in data processing or transformation.
  Cause:
  
  Missing Configuration: The operation with the specified ID may not have been properly configured, leading to the absence of the expected result AST.
  Incorrect Mapping: There may be an issue with the mapping of the data transformation, where the output structure is not correctly defined or linked to the operation.
  Version Mismatch: If there are multiple versions of the data transformation or operation, the system might be referencing an outdated or incorrect version that does not have the required AST.
  Data Model Changes: Changes in the underlying data model or structure may have resulted in the operation expecting a different output that is no longer available.
  
  Solution:
  
  Check Configuration: Review the configuration of the operation with the specified ID and ensure that all necessary settings are correctly defined.
  Validate Mapping: Ensure that the mapping for the data transformation is correctly set up and that the output structure is defined and linked to the operation.
  Update Versions: If there are multiple versions of the operation, ensure that the correct version is being used and that it has the necessary AST defined.
  Review Data Model: If there have been recent changes to the data model, verify that the operation is compatible with the current structure and update it as necessary.
  Debugging: Use debugging tools within SAP to trace the execution of the operation and identify where the AST is expected but missing.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Refer to the official SAP documentation for the Fiori Data Transformation framework to understand the expected configurations and mappings.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues and can provide insights or solutions.
  
  If the issue persists after following these steps, it may be beneficial to reach out to SAP support for further assistance, providing them with detailed information about the error and the context in which it occurs.