How To Fix MN639 - Step &1 in calculation schema &2 not defined (Please correct)

SAP Error Message - Details

• Message type: E = Error

• Message class: MN - Message class for subsequent settlement (Purchasing)

• Message number: 639

• Message text: Step &1 in calculation schema &2 not defined (Please correct)

What causes this issue?

The from-reference step for condition type &V4& in
<DS:GLOS.3526C095AFAB52B9E10000009B38F974>subsequent settlement</> is
&V1&. However, step &V1& does not exist in calculation schema &V2&
(application &V3&).

System Response

The system cannot update the supplier business volumes expressed as
value, as the supplier business volume expressed as value cannot be
determined (condition basis is 0). Similarly, no provision for accrued
income can be determined.

How to fix this error?

Correct calculation schema &V2&.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

<DS:SIMG.SIMG_CFMENUOLMEOMER5>Define calculation schema</>
ENDIF

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MN639 - Step &1 in calculation schema &2 not defined (Please correct) ?

  The SAP error message MN639 indicates that there is an issue with the calculation schema in the context of pricing or cost calculation. Specifically, it means that a step in the specified calculation schema is not defined, which can lead to problems in processing transactions that rely on that schema.
  Cause:
  
  Missing Step Definition: The specified step in the calculation schema is not defined. This could happen if the schema was modified or if there was an error during configuration.
  Incorrect Schema Assignment: The calculation schema assigned to the pricing procedure or condition type may not be correctly set up.
  Configuration Issues: There may be issues in the configuration of the pricing procedure or the calculation schema itself.
  
  Solution:
  
  
  Check Calculation Schema:
  
  Go to the transaction code V/08 (for pricing procedures) or V/06 (for condition types) in SAP.
  Verify that the calculation schema specified in the error message is correctly defined and that all necessary steps are included.
  
  
  
  Define Missing Steps:
  
  If a step is missing, you will need to define it. This can be done in the configuration settings for the calculation schema.
  Ensure that all required steps are included in the schema and that they are correctly configured.
  
  
  
  Review Schema Assignment:
  
  Check the assignment of the calculation schema to the relevant pricing procedure or condition type.
  Ensure that the correct schema is assigned and that it matches the requirements of your pricing logic.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources for guidance on configuring calculation schemas and pricing procedures.
  
  
  
  Testing:
  
  After making changes, test the pricing procedure to ensure that the error is resolved and that calculations are performed correctly.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  V/08: Pricing Procedures
  V/06: Condition Types
  V/02: Condition Records
  
  
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on this error.
  Support: If the issue persists after checking the configuration, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  By following these steps, you should be able to identify and resolve the issue related to the MN639 error message in SAP.