How To Fix FDT_EXPRESSIONS401 - Processing error; flow processing terminated at error node &1

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_EXPRESSIONS - Formula & Derivation Tool: Expressions

• Message number: 401

• Message text: Processing error; flow processing terminated at error node &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS401 - Processing error; flow processing terminated at error node &1 ?

  The SAP error message FDT_EXPRESSIONS401 indicates that there is a processing error in the flow, and it has been terminated at an error node. This error typically occurs in the context of SAP's Flexible Data Import (FDI) or similar data processing scenarios where expressions or transformations are being evaluated.
  Cause:
  
  Invalid Expression: The error may arise from an invalid expression or formula in the data flow. This could be due to syntax errors, unsupported functions, or references to non-existent fields.
  Data Type Mismatch: If the data types of the fields being processed do not match the expected types, it can lead to processing errors.
  Null or Missing Values: If the flow encounters null or missing values where it expects valid data, it may terminate with this error.
  Configuration Issues: Incorrect configuration of the data flow or transformation logic can also lead to this error.
  
  Solution:
  
  Check Expressions: Review the expressions or formulas used in the data flow. Ensure that they are correctly written and that all referenced fields exist and are spelled correctly.
  Validate Data Types: Ensure that the data types of the fields being processed are compatible. If necessary, use type conversion functions to align data types.
  Handle Null Values: Implement checks or default values for fields that may contain null or missing values to prevent the flow from terminating unexpectedly.
  Debugging: Use debugging tools available in SAP to trace the flow and identify the exact point of failure. This can help in pinpointing the specific expression or node causing the issue.
  Review Configuration: Check the configuration settings of the data flow to ensure that all parameters are set correctly and that there are no misconfigurations.
  
  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 errors.
  Documentation: Refer to the official SAP documentation for Flexible Data Import or the specific module you are working with to understand the expected behavior and configuration options.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can provide insights or solutions.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the context in which it occurred.