How To Fix APS_CCV_DATA_SOURCE007 - Cardinality is likely 'Zero or More'

SAP Error Message - Details

• Message type: E = Error

• Message class: APS_CCV_DATA_SOURCE - Data sources

• Message number: 007

• Message text: Cardinality is likely 'Zero or More'

What causes this issue?

As you haven?t mapped all key fields of the associated data source, the
result set is likely to consist more than one table row.

System Response

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?

It is recommended to change the cardinality to ?Zero or More?.

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 APS_CCV_DATA_SOURCE007 - Cardinality is likely 'Zero or More' ?

  The SAP error message APS_CCV_DATA_SOURCE007, which indicates that "Cardinality is likely 'Zero or More'," typically arises in the context of data modeling or data source configuration within SAP systems, particularly in SAP BW (Business Warehouse) or SAP HANA environments. This error suggests that there is a mismatch or inconsistency in the cardinality settings of a data source or data model.
  Cause:
  
  
  Cardinality Mismatch: The error usually occurs when the cardinality defined in the data model does not match the expected cardinality of the data source. For example, if a data source is expected to return multiple records but is defined as returning a single record, this inconsistency can trigger the error.
  
  
  Data Source Configuration: The configuration of the data source may not be set up correctly, leading to ambiguity in how many records are expected to be returned.
  
  
  Modeling Errors: Errors in the data model, such as incorrect relationships between tables or entities, can also lead to this error.
  
  
  Solution:
  
  
  Review Cardinality Settings: Check the cardinality settings in your data model. Ensure that they accurately reflect the nature of the data being processed. For example, if a relationship is defined as one-to-many, ensure that the data source can indeed return multiple records.
  
  
  Adjust Data Source Configuration: If the data source is incorrectly configured, adjust its settings to ensure that it aligns with the expected cardinality. This may involve modifying the data extraction logic or the way data is aggregated.
  
  
  Check Relationships: Review the relationships between different entities or tables in your data model. Ensure that they are correctly defined and that the cardinality reflects the actual data relationships.
  
  
  Testing: After making adjustments, test the data source and the model to ensure that the error is resolved and that the data is being processed correctly.
  
  
  Consult Documentation: Refer to SAP documentation or community forums for specific guidance related to your version of SAP and the context in which the error occurs.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Data Modeling Best Practices: Familiarize yourself with best practices in data modeling within SAP BW or HANA to avoid similar issues in the future.
  
  By addressing the cardinality settings and ensuring that the data source is correctly configured, you should be able to resolve the APS_CCV_DATA_SOURCE007 error.