How To Fix FDT_HANA156 - Invalid source field mapping for &1:

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_HANA - BRFplus: HANA Integration

• Message number: 156

• Message text: Invalid source field mapping for &1:

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_HANA156 - Invalid source field mapping for &1: ?

  The SAP error message FDT_HANA156: Invalid source field mapping for &1 typically occurs in the context of SAP Data Services or SAP HANA when there is an issue with the mapping of fields between source and target data structures. This error indicates that the field mapping defined in your data flow or transformation is not valid, which can happen for several reasons.
  Causes:
  
  Field Name Mismatch: The source field specified in the mapping does not exist in the source data structure.
  Data Type Incompatibility: The data type of the source field does not match the expected data type of the target field.
  Field Not Available: The source field may not be available due to changes in the source structure or data model.
  Incorrect Mapping Configuration: There may be a configuration error in the mapping settings, such as incorrect use of expressions or functions.
  Missing Source Table: The source table or view may not be correctly defined or accessible in the context of the data flow.
  
  Solutions:
  
  Verify Field Names: Check the source data structure to ensure that the field names used in the mapping are correct and exist in the source.
  Check Data Types: Ensure that the data types of the source fields match the expected data types of the target fields. If necessary, perform data type conversions.
  Review Mapping Configuration: Go through the mapping configuration to ensure that all mappings are correctly defined and that there are no syntax errors.
  Update Source Structure: If the source structure has changed, update the mapping to reflect the new structure.
  Test Source Accessibility: Ensure that the source table or view is accessible and that there are no connectivity issues.
  Use Debugging Tools: Utilize debugging tools or logs to trace the data flow and identify where the mapping is failing.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for Data Services or HANA for detailed information on field mapping and data transformation.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and to find potential solutions.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide patches related to this error.
  
  By following these steps, you should be able to identify and resolve the cause of the FDT_HANA156 error in your SAP environment.