How To Fix RSPLW103 - Not all key fields in DataStore object are used in step &1

SAP Error Message - Details

• Message type: E = Error

• Message class: RSPLW - Messages from planning modeler

• Message number: 103

• Message text: Not all key fields in DataStore object are used in step &1

What causes this issue?

DataStore object '&V2&' is used to model a characteristic relationship
in step '&V1&'. At least one key field in the DataStore object is
neither used in the relation nor restricted to a single value.

System Response

This setting results in performance problems at runtime, since not all
key fields in the DataStore object are known in the relation.

How to fix this error?

If the relation is of type Derivation, the key fields in the DataStore
object should be used as source fields or be restricted to a single
value.
If the relation is not of type Derivation, the key fields in the
DataStore object should be used in the relation or be restricted to a
single value.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSPLW103 - Not all key fields in DataStore object are used in step &1 ?

  The SAP error message RSPLW103 indicates that not all key fields in a DataStore Object (DSO) are being utilized in a specific step of a process, typically in a transformation or data flow. This can occur in various scenarios, such as when you are trying to load data into a DSO or when you are working with a query that references the DSO.
  Cause:
  
  Key Field Usage: The DSO has key fields defined, but the transformation or data flow step does not include all of these key fields. This can lead to issues with data integrity and uniqueness.
  Transformation Logic: The transformation logic may not be correctly set up to map all key fields from the source to the target DSO.
  Data Model Changes: Changes in the data model, such as adding or removing key fields from the DSO, may not have been reflected in the associated transformations or queries.
  
  Solution:
  
  Review Key Fields: Check the definition of the DSO to identify all key fields. Ensure that all key fields are included in the transformation or data flow step that is causing the error.
  Update Transformation: Modify the transformation to include all key fields. This may involve mapping the missing key fields from the source to the target DSO.
  Check Data Flow: If the error occurs during a data load, review the data flow to ensure that all necessary key fields are being passed through correctly.
  Test Changes: After making the necessary adjustments, test the data load or query execution again to ensure that the error is resolved.
  Documentation: Document any changes made to the DSO or transformations for future reference and to maintain consistency in the data model.
  
  Related Information:
  
  DataStore Object (DSO): A DSO is a type of data storage in SAP BW that allows for the storage of detailed transactional data. It is characterized by its key fields, which are used to uniquely identify records.
  Transformation: In SAP BW, a transformation is a set of rules that define how data is transferred from a source to a target object. It is essential to ensure that all key fields are correctly mapped to maintain data integrity.
  Data Integrity: Ensuring that all key fields are used is crucial for maintaining data integrity, as missing key fields can lead to duplicate records or data inconsistencies.
  
  By following these steps and understanding the underlying causes, you should be able to resolve the RSPLW103 error effectively.