How To Fix R7B216 - Characteristic &1 has more than &2 navigation attributes -> Performance

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 216

• Message text: Characteristic &1 has more than &2 navigation attributes -> Performance

What causes this issue?

Characteristic &V1& has &V3& navigation attributes.

System Response

The following actions are influenced negatively in their performance by
many navigation attributes:
Deleting, recreating navigation attributes (rebuilding attribute SID
tables)
Changing time-dependency of navigation attributes (rebuilding attribute
SID tables)
Loading master data (adjusting the attribute SID tables)

How to fix this error?

Use only the attributes that you need for reporting as navigation
attributes.

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 R7B216 - Characteristic &1 has more than &2 navigation attributes -> Performance ?

  The SAP error message R7B216 indicates that a characteristic in your data model has more navigation attributes than is recommended for optimal performance. This can lead to performance issues when querying or processing data in SAP BW (Business Warehouse) or SAP HANA environments.
  Cause:
  The error occurs when a characteristic is defined with more navigation attributes than the system can efficiently handle. Navigation attributes are used to provide additional context or detail about a characteristic, and having too many can complicate the data model and slow down query performance.
  Solution:
  To resolve this issue, you can take the following steps:
  
  
  Review Navigation Attributes: Check the characteristics that are causing the error and review their navigation attributes. Determine if all of them are necessary for your reporting needs.
  
  
  Reduce Navigation Attributes: If possible, reduce the number of navigation attributes for the characteristic in question. This can be done by:
  
  Removing unnecessary navigation attributes.
  Consolidating attributes if they can be combined logically.
  Creating new characteristics if certain attributes are frequently used together.
  
  
  
  Optimize Data Model: Consider optimizing your data model by:
  
  Creating separate characteristics for different sets of attributes.
  Using hierarchies or other structures to manage complex relationships without overloading a single characteristic.
  
  
  
  Test Performance: After making changes, test the performance of your queries to ensure that the adjustments have improved performance and that the necessary information is still accessible.
  
  
  Consult Documentation: Refer to SAP documentation or best practices for guidance on managing navigation attributes and optimizing data models.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or specific fixes related to this error.
  Performance Tuning: Familiarize yourself with general performance tuning techniques in SAP BW or HANA, as they can help mitigate similar issues in the future.
  Data Modeling Best Practices: Review best practices for data modeling in SAP BW, which can help you design more efficient data structures.
  
  By addressing the number of navigation attributes and optimizing your data model, you can resolve the R7B216 error and improve the performance of your SAP BW queries.