How To Fix BRAIN568 - Inverse formula is missing for &2 for input-ready formula &1

SAP Error Message - Details

• Message type: E = Error

• Message class: BRAIN -

• Message number: 568

• Message text: Inverse formula is missing for &2 for input-ready formula &1

What causes this issue?

In a formula group, inverse formulas must be defined for all modifiable
elements. This means all elements that are input ready or a formula with
input-ready parts. This is not the case for this formula group, as
element &V2& in formula group &V1& is modifiable, but the inverse
formula for &V2& is missing.

System Response

The query contains errors and cannot be generated.

How to fix this error?

If &V2& is input-ready, create an inverse formula for &V2&. Otherwise,
make &V2& input-ready too or revoke the input-readiness of of the
operands for &V2& .

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 BRAIN568 - Inverse formula is missing for &2 for input-ready formula &1 ?

  The SAP error message BRAIN568 indicates that there is an issue with an input-ready formula in SAP BW (Business Warehouse) or SAP BPC (Business Planning and Consolidation). Specifically, it means that the inverse formula for a given input-ready formula is missing. This can occur when you are trying to use an input-ready formula that requires an inverse calculation, but the system cannot find the corresponding inverse formula.
  Cause:
  
  Missing Inverse Formula: The primary cause of this error is that the inverse formula has not been defined in the system for the specified input-ready formula.
  Configuration Issues: There may be configuration issues in the planning model or the formula setup that prevent the inverse formula from being recognized.
  Data Model Changes: Changes in the data model or the underlying InfoObjects may have led to the removal or misconfiguration of the inverse formula.
  
  Solution:
  
  
  Define the Inverse Formula: 
  
  Go to the planning model where the input-ready formula is defined.
  Check if the inverse formula is defined. If not, you will need to create it.
  Ensure that the inverse formula correctly references the input-ready formula and performs the necessary calculations.
  
  
  
  Check Formula Configuration:
  
  Review the configuration of the input-ready formula to ensure that it is set up correctly.
  Verify that all necessary parameters and references are correctly defined.
  
  
  
  Recreate the Formula:
  
  If the inverse formula is missing or corrupted, consider recreating both the input-ready formula and its inverse from scratch.
  
  
  
  Consult Documentation: 
  
  Refer to SAP documentation or help resources for guidance on how to define input-ready and inverse formulas properly.
  
  
  
  Testing: 
  
  After making changes, test the formulas to ensure that they work as expected and that the error does not reoccur.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Training and Documentation: Consider reviewing training materials or documentation related to SAP BW/BPC planning functions to better understand how to work with formulas.
  
  By following these steps, you should be able to resolve the BRAIN568 error and ensure that your input-ready formulas function correctly within your SAP environment.