How To Fix UMV049 - Value driver '&1': The assigned formula creates a loop

SAP Error Message - Details

• Message type: E = Error

• Message class: UMV - Value Driver Tree

• Message number: 049

• Message text: Value driver '&1': The assigned formula creates a loop

What causes this issue?

The BPS formula assigned to value driver '&V1&' creates a loop.

System Response

No additional value drivers are added automatically to the value driver
according to the assigned BPS formula.

How to fix this error?

Assign a BPS formula that does not create a loop in the value driver
tree.

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 UMV049 - Value driver '&1': The assigned formula creates a loop ?

  The SAP error message UMV049 indicates that there is a circular reference in the value driver formula you are trying to use. This means that the formula for the value driver is set up in such a way that it refers back to itself, either directly or indirectly, creating a loop that cannot be resolved.
  Cause:
  
  Circular Reference: The most common cause of this error is that the formula for the value driver references itself, either directly or through a chain of other value drivers.
  Incorrect Formula Setup: The formula may be incorrectly defined, leading to unintended references that create a loop.
  Dependencies: If the value driver depends on other value drivers that, in turn, depend on it, this can create a circular dependency.
  
  Solution:
  
  Review the Formula: Check the formula assigned to the value driver. Ensure that it does not reference itself directly or indirectly.
  Break the Loop: If you identify a circular reference, modify the formula to eliminate the loop. This may involve changing the logic or the dependencies of the value drivers.
  Use Intermediate Calculations: If necessary, break down complex calculations into simpler intermediate steps that do not create circular references.
  Test Changes: After making adjustments, test the value driver to ensure that the error is resolved and that the calculations are correct.
  
  Related Information:
  
  Documentation: Refer to SAP documentation for guidelines on setting up value drivers and formulas to avoid circular references.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  Debugging Tools: Utilize any debugging tools available in your SAP environment to trace the dependencies of the value drivers and identify where the loop is occurring.
  
  By carefully reviewing and adjusting the formulas and dependencies, you should be able to resolve the UMV049 error and successfully implement your value driver.