How To Fix WRMA_CAT106 - Billing type &1: Maintain calculation schema determination

SAP Error Message - Details

• Message type: E = Error

• Message class: WRMA_CAT - RMA cost allocation

• Message number: 106

• Message text: Billing type &1: Maintain calculation schema determination

Self-Explanatory Message

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• What is the cause and solution for SAP error message WRMA_CAT106 - Billing type &1: Maintain calculation schema determination ?

  SAP Error Message:
  
  WRMA_CAT106 – Billing type &1: Maintain calculation schema determination
  
  Cause:
  This error occurs because the billing type you are using in the billing document does not have a calculation schema assigned to it in the system. The calculation schema controls how pricing and taxes are calculated during billing. Without a valid calculation schema determination for the billing type, the system cannot proceed with pricing calculations, resulting in this error.
  
  Explanation:
  
  Billing Type: Defines the kind of billing document (e.g., invoice, credit memo).
  Calculation Schema: Defines the pricing procedure and rules applied during billing.
  The system requires a link between the billing type and the calculation schema to know which pricing procedure to use.
  If this link is missing or incorrectly maintained, the system throws the WRMA_CAT106 error.
  
  
  Solution:
  You need to maintain the calculation schema determination for the billing type in the customizing settings.
  Steps to resolve:
  
  
  Go to SPRO (SAP Reference IMG):
  
  SPRO ? Sales and Distribution ? Billing ? Billing Documents ? Maintain Calculation Schema Determination
  
  
  Maintain Calculation Schema Determination:  
  
  Find the billing type mentioned in the error message (replace &1 with actual billing type).
  Assign the appropriate calculation schema to this billing type.
  Save your changes.
  
  
  
  Verify Pricing Procedure:  
  
  Ensure that the calculation schema assigned is valid and active.
  Check if the pricing procedure linked to the calculation schema is correctly maintained.
  
  
  
  Test the Billing Document:  
  
  Try to create the billing document again to confirm the error is resolved.
  
  
  
  
  Additional Information:
  
  This error is common when new billing types are created or copied from existing ones but the calculation schema determination is not maintained.
  Calculation schema determination is a key step in customizing billing documents to ensure correct pricing.
  If you are unsure which calculation schema to assign, consult your pricing or SD configuration team.
  Sometimes, this error can also appear if the billing type is incorrectly used in a scenario where it is not configured.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error Message
  WRMA_CAT106
  
  
  Cause
  Missing calculation schema determination for billing type
  
  
  Solution
  Maintain calculation schema determination for the billing type in SPRO
  
  
  Transaction Path
  SPRO ? Sales and Distribution ? Billing ? Billing Documents ? Maintain Calculation Schema Determination
  
  
  
  
  If you need the exact IMG path or transaction codes:
  
  
  IMG Path:
  
  SPRO ? SAP Reference IMG ? Sales and Distribution ? Billing ? Billing Documents ? Maintain Calculation Schema Determination
  
  
  Transaction Code:
  
  No direct transaction code; use SPRO for configuration.
  
  
  
  If you want, I can provide step-by-step screenshots or further details on how to maintain the calculation schema determination.