How To Fix RS_HCPR_MODEL018 - Temporal join: Unassigned target field &1

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 018

• Message text: Temporal join: Unassigned target field &1

What causes this issue?

The CompositeProvider contains target fields without being assigned to a
source field.

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?

Remove all unassigned target fields.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RS_HCPR_MODEL018 - Temporal join: Unassigned target field &1 ?

  The SAP error message RS_HCPR_MODEL018, which states "Temporal join: Unassigned target field &1," typically occurs in the context of SAP HANA or SAP BW when working with data models that involve temporal joins. This error indicates that there is a target field in your data model that has not been assigned a source field, which is necessary for the join operation to function correctly.
  Cause:
  
  Unassigned Target Field: The error arises when a target field in the temporal join is not mapped to any source field. This can happen if the data model is not properly configured or if there are missing mappings.
  Model Configuration Issues: There may be issues in the configuration of the data model, such as missing or incorrect definitions of the fields involved in the join.
  Changes in Data Model: If there have been recent changes to the data model, such as adding or removing fields, it may lead to inconsistencies that result in this error.
  
  Solution:
  
  Check Field Mappings: Review the mappings in your data model to ensure that all target fields are correctly assigned to their corresponding source fields. Make sure that the field &1 mentioned in the error message is properly mapped.
  Update the Data Model: If you find any unassigned fields, update the data model to assign the necessary source fields to the target fields. This may involve editing the join conditions or the field mappings in the model.
  Validate the Model: After making changes, validate the data model to ensure that all fields are correctly configured and that there are no further errors.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on configuring temporal joins and field mappings, as this can provide additional insights into resolving the issue.
  Test the Model: Once adjustments are made, test the data model to ensure that the temporal join works as expected without generating errors.
  
  Related Information:
  
  Temporal Joins: These are used in scenarios where you need to join data based on time-related conditions. Understanding how temporal joins work in SAP HANA or BW is crucial for troubleshooting related issues.
  SAP Notes and Community: Check SAP Notes for any known issues or patches related to this error. The SAP Community forums can also be a valuable resource for finding solutions shared by other users who have encountered similar issues.
  Data Model Documentation: Review the documentation for the specific data model you are working with to understand the expected configurations and requirements for temporal joins.
  
  By following these steps, you should be able to identify and resolve the cause of the RS_HCPR_MODEL018 error in your SAP environment.