How To Fix RSIS105 - Field &1 of data obj. descr. &2 should be data type &3, instead is &4

SAP Error Message - Details

• Message type: E = Error

• Message class: RSIS -

• Message number: 105

• Message text: Field &1 of data obj. descr. &2 should be data type &3, instead is &4

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSIS105 - Field &1 of data obj. descr. &2 should be data type &3, instead is &4 ?

  The SAP error message RSIS105 indicates a data type mismatch in the context of data objects, typically related to the SAP BW (Business Warehouse) or SAP BI (Business Intelligence) environment. This error occurs when the system expects a certain data type for a field in a data object (like an InfoObject, DataSource, or InfoProvider), but the actual data type present does not match the expected type.
  Cause:
  The error message is triggered due to one of the following reasons:
  
  Data Type Mismatch: The field in question is defined with a specific data type (e.g., CHAR, NUMC, DATS) in the data object description, but the actual data being processed does not conform to this type.
  Changes in Data Model: If there have been recent changes to the data model (like changes in InfoObjects or DataSources), it may lead to inconsistencies in data types.
  Data Loading Issues: During data loading or transformation processes, if the source data does not match the expected format, this error can occur.
  
  Solution:
  To resolve the RSIS105 error, you can follow these steps:
  
  
  Check Data Object Definition:
  
  Go to the data object (InfoObject, DataSource, etc.) in the SAP BW system.
  Verify the data type defined for the field in question. Ensure it matches the expected data type.
  
  
  
  Review Source Data:
  
  Check the source data being loaded into the data object. Ensure that the data types in the source match the expected types in the target data object.
  If necessary, clean or transform the source data to ensure compatibility.
  
  
  
  Adjust Data Type:
  
  If the data type in the data object needs to be changed to accommodate the incoming data, you can modify the data object definition. However, be cautious as this may have implications on existing reports and queries.
  
  
  
  Reprocess Data Load:
  
  After making the necessary adjustments, reprocess the data load to see if the error persists.
  
  
  
  Check Transformation Rules:
  
  If you are using transformations, ensure that the mapping and rules defined in the transformation are correct and that they do not lead to data type mismatches.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific data object or error message for additional guidance.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like RSA1 (Data Warehousing Workbench) to access InfoObjects and DataSources.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide patches related to this error.
  Data Modeling: Understanding the data modeling concepts in SAP BW can help prevent such issues in the future.
  
  By following these steps, you should be able to identify and resolve the cause of the RSIS105 error in your SAP environment.