How To Fix RSDHA409 - Data type mismatch for mapped task input field '&1'

RSDHA409 - Overview

• Message type: E = Error

• Message class: RSDHA - HANA Analysis in BW

• Message number: 409

• Message text: Data type mismatch for mapped task input field '&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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDHA409 - Data type mismatch for mapped task input field '&1' ?

  The SAP error message RSDHA409 indicates a data type mismatch for a mapped task input field in a data flow or transformation process, typically within the context of SAP BW (Business Warehouse) or SAP HANA. This error occurs when the data type of the source field does not match the expected data type of the target field in the mapping.
  
  Cause:
  
  Data Type Mismatch: The most common cause is that the source field's data type (e.g., CHAR, NUMC, DEC, etc.) does not match the target field's data type in the transformation or data flow.
  Field Length Issues: The length of the source field may exceed the length defined for the target field.
  Incorrect Mapping: The mapping configuration may be incorrect, leading to an attempt to map incompatible data types.
  Changes in Data Model: If there have been recent changes to the data model (e.g., changes in InfoObjects or data types), this can lead to mismatches.
  
  
  Solution:
  
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