How To Fix HTA_HDI_WSM304 - Source data used for transformation has an invalid type

SAP Error Message - Details

• Message type: E = Error

• Message class: HTA_HDI_WSM - Messages for Workspace Management

• Message number: 304

• Message text: Source data used for transformation has an invalid type

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message HTA_HDI_WSM304 - Source data used for transformation has an invalid type ?

  The SAP error message HTA_HDI_WSM304 indicates that there is an issue with the data type of the source data being used in a transformation process within the SAP HANA Data Intelligence (HDI) environment. This error typically arises when the data type of the source data does not match the expected data type for the transformation operation.
  Cause:
  
  Data Type Mismatch: The source data being used in the transformation may have a data type that is incompatible with the expected data type. For example, trying to perform mathematical operations on string data types or using a date function on a non-date type.
  Schema Changes: If there have been recent changes to the schema of the source data (e.g., changing a column type), and the transformation logic has not been updated accordingly, this can lead to this error.
  Incorrect Mapping: In cases where data is being mapped from one structure to another, if the mapping does not align with the expected data types, this error can occur.
  
  Solution:
  
  Check Data Types: Review the data types of the source data and ensure they match the expected data types in the transformation logic. You can do this by examining the source table or view definitions.
  Update Transformation Logic: If the source data types have changed, update the transformation logic to accommodate these changes. This may involve casting data types or modifying the transformation logic to handle different types appropriately.
  Validate Mappings: If you are using a mapping tool or framework, ensure that the mappings between source and target data structures are correctly defined and that the data types align.
  Testing: After making changes, test the transformation again to ensure that the error has been resolved.
  
  Related Information:
  
  SAP HANA Documentation: Refer to the official SAP HANA documentation for detailed information on data types and transformation functions.
  Data Intelligence: If you are using SAP Data Intelligence, consult the documentation for best practices on data transformation and handling data types.
  Error Logs: Check the error logs for additional context or details that may help identify the specific source of the issue.
  Community Forums: Consider reaching out to SAP community forums or support channels for assistance if the issue persists.
  
  By following these steps, you should be able to identify and resolve the cause of the HTA_HDI_WSM304 error in your SAP environment.