How To Fix R7B665 - Characteristic &1 contains data. High cardinality change not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: R7B - BW Metadata (InfoCube, InfoObject, InfoObject catalog)

• Message number: 665

• Message text: Characteristic &1 contains data. High cardinality change not possible

What causes this issue?

Characteristic &V1& contains data. The high-cardinality property cannot
be changed in the InfoObject maintenance transaction.

System Response

The system is not able to activate characteristic &V1&.

How to fix this error?

Change the high-cardinality property of characteristic &V1& in the
remodeling tool.

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 R7B665 - Characteristic &1 contains data. High cardinality change not possible ?

  The SAP error message R7B665 indicates that a characteristic in your data model has high cardinality, meaning it contains a large number of unique values. This situation can arise when you attempt to change the properties of a characteristic that is already populated with data, particularly when trying to change it to a high cardinality characteristic.
  Cause:
  
  High Cardinality: The characteristic in question has a large number of unique values, which makes it unsuitable for certain types of changes.
  Data Already Exists: The characteristic already contains data, and SAP does not allow changes that could potentially disrupt the integrity of the existing data.
  Modeling Restrictions: Certain changes to characteristics (like changing from low to high cardinality) are restricted in SAP BW/4HANA or SAP BW due to the potential impact on performance and data integrity.
  
  Solution:
  
  Review the Characteristic: Check the characteristic to understand its current usage and the number of unique values it contains.
  Data Cleanup: If possible, consider cleaning up the data to reduce the cardinality. This could involve consolidating values or removing unnecessary data.
  Create a New Characteristic: If changing the existing characteristic is not feasible, consider creating a new characteristic with the desired properties and migrating the data to this new characteristic.
  Consult Documentation: Review SAP documentation for specific guidelines on handling high cardinality characteristics and any restrictions that may apply.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions for this specific error message.
  
  Related Information:
  
  SAP BW/4HANA Documentation: Refer to the official SAP BW/4HANA documentation for best practices on data modeling and characteristics.
  Performance Considerations: Understand the implications of high cardinality on performance and reporting within your SAP environment.
  Data Modeling Best Practices: Familiarize yourself with best practices for data modeling in SAP BW to avoid similar issues in the future.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance.