How To Fix RSDS118 - Only one field is allowed for each segment as a lower limit (validity)

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDS - New DataSource

• Message number: 118

• Message text: Only one field is allowed for each segment as a lower limit (validity)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDS118 - Only one field is allowed for each segment as a lower limit (validity) ?

  The SAP error message RSDS118, which states "Only one field is allowed for each segment as a lower limit (validity)," typically occurs in the context of SAP BW (Business Warehouse) when you are trying to define a data source or a transformation that involves segmenting data. This error indicates that the system expects only one field to be defined as a lower limit for a particular segment, but it has detected multiple fields being defined in that context.
  Cause:
  
  Multiple Fields Defined: The most common cause of this error is that you have defined more than one field as a lower limit for a segment in your data source or transformation.
  Incorrect Configuration: There may be a misconfiguration in the data source or transformation settings where the system is interpreting multiple fields as lower limits.
  Data Model Issues: The underlying data model may have inconsistencies or conflicts that lead to this error.
  
  Solution:
  
  Review Segment Definitions: Go to the data source or transformation where the error is occurring and check the segment definitions. Ensure that only one field is defined as a lower limit for each segment.
  Adjust Field Mappings: If you have multiple fields that you believe should act as lower limits, consider whether you can consolidate them into a single field or adjust your logic to comply with the requirement of having only one lower limit.
  Check for Duplicates: Ensure that there are no duplicate entries or configurations that might be causing the system to interpret multiple fields as lower limits.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on defining segments and lower limits in your version of SAP BW.
  Testing: After making adjustments, test the data source or transformation to ensure that the error is resolved.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. Sometimes, specific versions of SAP BW may have bugs that are documented in SAP Notes.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Training and Documentation: If you are new to SAP BW, consider reviewing training materials or documentation that cover data source and transformation configurations to better understand how to set up segments correctly.
  
  By following these steps, you should be able to resolve the RSDS118 error and ensure that your data source or transformation is configured correctly.