How To Fix RS_HCPR_MODEL129 - CompositeProvider '&1' not valid as left join partner (see details)

RS_HCPR_MODEL129 - Overview

• Message type: E = Error

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

• Message number: 129

• Message text: CompositeProvider '&1' not valid as left join partner (see details)

What causes this issue?

If you use a CompositeProvider as left join partner, then all
PartProviders of this CompositeProvider need to have a column view.
This is not the case for PartProvider &V2&.

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

System Response

How to fix this error?

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 RS_HCPR_MODEL129 - CompositeProvider '&1' not valid as left join partner (see details) ?

  The SAP error message RS_HCPR_MODEL129 indicates that there is an issue with the configuration of a CompositeProvider in SAP BW/4HANA or SAP BW on HANA. Specifically, it suggests that the CompositeProvider you are trying to use as a left join partner is not valid for that purpose. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause
  
  
  Incompatible Data Sources: The CompositeProvider may be trying to join data sources that are not compatible with a left join. This can happen if the data sources have different characteristics or if one of them is not suitable for the join type specified.
  
  
  Join Conditions: The join conditions defined in the CompositeProvider may not be correctly set up, leading to the error when trying to execute the left join.
  
  
  Data Model Issues: There may be issues with the underlying data model, such as missing keys or incorrect data types that prevent the CompositeProvider from functioning