How To Fix UMV032 - The selected value driver creates a loop

SAP Error Message - Details

• Message type: E = Error

• Message class: UMV - Value Driver Tree

• Message number: 032

• Message text: The selected value driver creates a loop

What causes this issue?

The selected value driver would create a loop in the value driver tree.
However, only one-way links are supported. This means that node K1,
which already dominates node K2, cannot be selected as a subnode of K2.

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?

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 UMV032 - The selected value driver creates a loop ?

  The SAP error message UMV032, which states "The selected value driver creates a loop," typically occurs in the context of SAP Analytics Cloud (SAC) or SAP Business Planning and Consolidation (BPC) when there is a circular reference in the value driver tree. This means that the value driver you are trying to use is dependent on itself, either directly or indirectly, which creates a loop that cannot be resolved.
  Cause:
  
  Circular Dependency: The most common cause of this error is that the value driver you are trying to create or use is dependent on another value driver that, in turn, is dependent on the original driver, creating a loop.
  Incorrect Configuration: Sometimes, the configuration of the value drivers may not be set up correctly, leading to unintended dependencies.
  Complex Value Driver Trees: In complex scenarios with multiple value drivers, it can be easy to inadvertently create a loop.
  
  Solution:
  
  Review Value Driver Dependencies: Check the dependencies of the value drivers involved. Ensure that no driver is indirectly or directly referencing itself.
  Modify Value Driver Logic: Adjust the logic of the value drivers to eliminate the circular reference. This may involve changing the calculations or the way drivers are linked.
  Simplify the Value Driver Tree: If the value driver tree is complex, consider simplifying it by breaking it down into smaller, more manageable parts.
  Testing: After making changes, test the value driver configuration to ensure that the error no longer occurs and that the calculations are correct.
  Documentation and Support: Refer to SAP documentation for best practices on setting up value drivers. If the issue persists, consider reaching out to SAP support for assistance.
  
  Related Information:
  
  SAP Documentation: Check the official SAP Help Portal for detailed documentation on value drivers and their configuration.
  Community Forums: Engage with the SAP Community to see if others have encountered similar issues and how they resolved them.
  Training Resources: Consider training sessions or tutorials on value driver configuration in SAP Analytics Cloud or BPC to better understand how to avoid such issues in the future.
  
  By following these steps, you should be able to resolve the UMV032 error and successfully configure your value drivers without creating loops.