How To Fix RSAR303 - Invalid data type: &

SAP Error Message - Details

• Message type: E = Error

• Message class: RSAR - Data Transfer and Metadata Maintenance

• Message number: 303

• Message text: Invalid data type: &

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 RSAR303 - Invalid data type: & ?

  The SAP error message RSAR303 "Invalid data type: &" typically occurs in the context of data extraction or data transfer processes, particularly when working with SAP BW (Business Warehouse) or SAP Data Services. This error indicates that there is an issue with the data type of a field that is being processed, which is not recognized or is incompatible with the expected data type.
  Cause:
  
  Data Type Mismatch: The most common cause of this error is a mismatch between the data type defined in the source system and the data type expected in the target system (e.g., BW).
  Incorrect Field Mapping: If the field mappings in the data transfer process (DTP) or InfoPackage are not correctly defined, it can lead to this error.
  Unsupported Data Types: The source system may contain data types that are not supported by SAP BW or the specific data transfer process being used.
  Changes in Source Structure: If there have been changes in the source data structure (e.g., new fields added, data types changed) and the BW model has not been updated accordingly, this error can occur.
  
  Solution:
  
  Check Data Types: Review the data types of the fields in both the source and target systems. Ensure that they are compatible and correctly defined.
  Update Field Mappings: Go to the DTP or InfoPackage settings and verify the field mappings. Make sure that all fields are correctly mapped and that their data types match.
  Adjust Data Model: If there have been changes in the source structure, update the BW data model accordingly. This may involve adjusting InfoObjects, DataSources, or DTPs.
  Data Type Conversion: If necessary, implement data type conversion logic in the transformation rules to ensure that the data types are compatible.
  Check for Unsupported Types: If the source system has data types that are not supported by BW, consider transforming these fields into supported types before the data transfer.
  Test the Data Transfer: After making the necessary adjustments, test the data transfer process to ensure that the error is resolved.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to RSAR303 for any specific patches or updates that may address this issue.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Documentation: Review SAP documentation on data extraction and data transfer processes for best practices and guidelines.
  
  By following these steps, you should be able to identify the root cause of the RSAR303 error and implement a solution to resolve it.