How To Fix RSDD_LM050 - CompositeProvider field '&1' is linked more than once

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDD_LM - Messages for Lean Modeler (API and RSLIMO)

• Message number: 050

• Message text: CompositeProvider field '&1' is linked more than once

What causes this issue?

A field in a CompositeProvider can only be linked with one field in a
provider.
Field &V1& is linked more than once with provider &V2&.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Delete all but one of these connections.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSDD_LM050 - CompositeProvider field '&1' is linked more than once ?

  The SAP error message RSDD_LM050 indicates that a field in a CompositeProvider is linked more than once. This typically occurs when you are trying to create or modify a CompositeProvider in SAP BW (Business Warehouse) or SAP BW/4HANA, and the system detects that a particular field is being referenced multiple times from different sources or data models.
  Cause:
  
  Duplicate Field References: The most common cause of this error is that the same field from a data source is being included multiple times in the CompositeProvider. This can happen if you have multiple data sources that contain the same field and you attempt to include them all in the CompositeProvider.
  Incorrect Joins: If you have defined joins in a way that leads to the same field being pulled in from different tables or data sources, this can also trigger the error.
  Modeling Errors: Errors in the modeling process, such as incorrect mappings or configurations, can lead to this issue.
  
  Solution:
  To resolve the RSDD_LM050 error, you can take the following steps:
  
  
  Review Field Mappings: Check the field mappings in your CompositeProvider. Ensure that each field is only included once. If a field is needed from multiple sources, consider whether you can consolidate the data or use a different approach.
  
  
  Adjust Joins: If the error is due to joins, review the join conditions and ensure that they are set up correctly. You may need to modify the join logic to avoid pulling in the same field multiple times.
  
  
  Use Aliases: If you need to reference the same field from different sources, consider using aliases or renaming the fields in the data source to avoid conflicts.
  
  
  Check Data Sources: Ensure that the data sources you are using do not have overlapping fields that are not necessary for your analysis. If they do, you may need to adjust your data model.
  
  
  Recreate the CompositeProvider: In some cases, it may be easier to recreate the CompositeProvider from scratch, ensuring that you do not include the same field multiple times.
  
  
  Consult Documentation: Refer to SAP documentation or community forums for additional guidance on CompositeProvider modeling best practices.
  
  
  Related Information:
  
  SAP BW/4HANA Documentation: Check the official SAP documentation for BW/4HANA for detailed information on CompositeProviders and best practices for modeling.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  SAP Notes: Look for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.