How To Fix FDT_CORE242 - Only Table type S (system) is supported for expression types.

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_CORE - Formula & Derivation Tool: Core

• Message number: 242

• Message text: Only Table type S (system) is supported for expression types.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_CORE242 - Only Table type S (system) is supported for expression types. ?

  The SAP error message FDT_CORE242 indicates that there is an issue with the expression types being used in a data flow or expression context within the SAP system. Specifically, it states that only table type "S" (system) is supported for the expression types being utilized.
  Cause:
  This error typically arises when:
  
  You are trying to use a table type that is not supported in the context of the expression you are working with.
  The expression is attempting to reference a table type that is not defined as a system table type "S".
  There may be a mismatch in the expected data types or structures in the expression.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Table Types: Ensure that the table types you are using in your expressions are of type "S". You can do this by reviewing the data definitions in your ABAP Dictionary (transaction SE11).
  
  
  Modify Expressions: If you are using a custom table type or a different type of table, modify your expressions to use the correct system table type "S".
  
  
  Review Data Flow: If this error occurs in a data flow context (like in SAP Data Services or similar tools), review the data flow design to ensure that all components are compatible and correctly configured.
  
  
  Consult Documentation: Refer to the SAP documentation or help resources for the specific module or tool you are using to understand the requirements for expression types and table types.
  
  
  Debugging: If you have access to debugging tools, you can step through the code or data flow to identify where the unsupported table type is being referenced.
  
  
  Seek Help from SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance, providing them with the context and details of the error.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  Documentation: Review the official SAP documentation for the specific module or tool you are using to understand the constraints and requirements regarding table types and expressions.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.