How To Fix RS_HCPR_MODEL109 - Compounding parent '&2' of join field '&1' is not a join field

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 109

• Message text: Compounding parent '&2' of join field '&1' is not a join field

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_MODEL109 - Compounding parent '&2' of join field '&1' is not a join field ?

  The SAP error message RS_HCPR_MODEL109 indicates an issue related to the definition of a join in a data model, specifically in the context of SAP BW (Business Warehouse) or SAP HANA modeling. The error message suggests that there is a problem with the join field configuration, where the compounding parent of a join field is not recognized as a valid join field.
  Cause:
  
  Incorrect Join Configuration: The join field specified in the error message is not properly defined as a join field in the data model. This could happen if the field is not included in the join definition or if there is a mismatch in the data types.
  Missing Compounding Parent: The compounding parent field (indicated as '&2') is not set up correctly in the data model, meaning it is not recognized as a valid field for compounding.
  Modeling Errors: There may be errors in the data model configuration, such as incorrect relationships or missing fields that are supposed to be part of the join.
  
  Solution:
  
  Check Join Field Definitions: Review the join field definitions in the data model. Ensure that both the join field ('&1') and its compounding parent ('&2') are correctly defined and included in the join configuration.
  Verify Data Types: Ensure that the data types of the join field and its compounding parent are compatible. Mismatched data types can lead to this error.
  Update Data Model: If necessary, update the data model to include the missing compounding parent as a join field. This may involve modifying the data source or the InfoObject definitions.
  Rebuild the Model: In some cases, it may be necessary to rebuild the data model or refresh the data source to ensure that all fields are correctly recognized.
  Check for Transport Issues: If the model was recently transported from another system, ensure that all necessary objects and dependencies were included in the transport.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to this error message for any specific patches or updates that may address the issue.
  Documentation: Refer to SAP BW or SAP HANA modeling documentation for guidelines on defining joins and compounding fields.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the RS_HCPR_MODEL109 error in your SAP environment.