How To Fix RS_HCPR_MODEL134 - Mixed union/join scenario not allowed for reusable PartProviders

SAP Error Message - Details

• Message type: E = Error

• Message class: RS_HCPR_MODEL - Messages related to the HANA Composite Provider Backend

• Message number: 134

• Message text: Mixed union/join scenario not allowed for reusable PartProviders

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message RS_HCPR_MODEL134 - Mixed union/join scenario not allowed for reusable PartProviders ?

  The SAP error message RS_HCPR_MODEL134 indicates that there is a problem with the configuration of a reusable PartProvider in a mixed union/join scenario. This error typically arises in the context of SAP BW (Business Warehouse) or SAP HANA when dealing with CompositeProviders or similar data modeling scenarios.
  Cause:
  The error occurs when you attempt to create a CompositeProvider that combines data from different sources using both unions and joins in a way that is not supported. Specifically, reusable PartProviders (like InfoProviders or other CompositeProviders) cannot be used in a mixed scenario where some data is being joined while other data is being unioned. This is a limitation in the way SAP handles data modeling for performance and consistency reasons.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review the Data Model: Check the structure of your CompositeProvider and identify where the mixed union/join scenario is occurring. Ensure that you are not trying to combine reusable PartProviders in a way that mixes joins and unions.
  
  
  Separate Models: If you need to use both joins and unions, consider creating separate CompositeProviders. You can create one CompositeProvider for the union scenario and another for the join scenario. Then, if necessary, you can create a third CompositeProvider that combines the results of the first two.
  
  
  Use Non-Reusable PartProviders: If feasible, consider using non-reusable PartProviders for the specific scenario that requires a mixed union/join. This may involve duplicating some logic but can help you avoid the error.
  
  
  Check Documentation: Refer to the SAP documentation for CompositeProviders and PartProviders to understand the limitations and best practices for modeling data in SAP BW or HANA.
  
  
  Testing: After making changes, test the CompositeProvider to ensure that it functions correctly and does not produce the error.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or updates regarding this error.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Performance Considerations: Be aware that the way you structure your data model can impact performance. Always consider the implications of your design choices on query performance and data retrieval times.
  
  By following these steps, you should be able to resolve the RS_HCPR_MODEL134 error and successfully configure your CompositeProvider.