How To Fix RSAOLTP326 - InfoObject &1 is assigned to several fields of data source &2

SAP Error Message - Details

• Message type: E = Error

• Message class: RSAOLTP - Notifications in OLTP Source Environment

• Message number: 326

• Message text: InfoObject &1 is assigned to several fields of data source &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSAOLTP326 - InfoObject &1 is assigned to several fields of data source &2 ?

  The SAP error message RSAOLTP326 indicates that an InfoObject is assigned to multiple fields in a data source, which can lead to confusion or data integrity issues. This typically occurs in the context of SAP BW (Business Warehouse) when working with data sources and InfoObjects.
  Cause:
  The error arises when an InfoObject (e.g., a characteristic or key figure) is mapped to more than one field in a data source. This can happen due to:
  
  Incorrect Data Source Configuration: The data source may have been incorrectly set up, leading to multiple mappings for the same InfoObject.
  Changes in Data Model: If the data model has been modified (e.g., adding new fields or changing existing mappings), it may result in the same InfoObject being assigned to multiple fields.
  Legacy Data Sources: Older data sources that were not properly maintained or updated may have this issue.
  
  Solution:
  To resolve the RSAOLTP326 error, you can follow these steps:
  
  
  Check Data Source Configuration:
  
  Go to the data source in the SAP BW system (transaction code RSA1).
  Navigate to the relevant data source and check the field mappings.
  Ensure that each InfoObject is assigned to only one field.
  
  
  
  Modify Field Assignments:
  
  If you find that an InfoObject is assigned to multiple fields, you will need to modify the assignments.
  Remove or change the assignments so that each InfoObject corresponds to a single field.
  
  
  
  Re-activate the Data Source:
  
  After making changes, you may need to re-activate the data source to ensure that the changes take effect.
  This can typically be done in the same area where you modified the field assignments.
  
  
  
  Test the Data Source:
  
  Once the changes are made, test the data source to ensure that it is functioning correctly and that the error message no longer appears.
  
  
  
  Documentation and Best Practices:
  
  Document any changes made for future reference.
  Follow best practices for data source design to avoid similar issues in the future, such as keeping a clear mapping of InfoObjects to fields.
  
  
  
  Related Information:
  
  Transaction Codes: RSA1 (Data Warehousing Workbench), RSA3 (Data Source Test), and RSO2 (Data Source Maintenance) can be useful for managing data sources.
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or fixes related to this error.
  Data Modeling: Understanding the principles of data modeling in SAP BW can help prevent such issues from occurring in the future.
  
  By following these steps, you should be able to resolve the RSAOLTP326 error and ensure that your data source is correctly configured.