How To Fix W0078 - Maintain the application and calculation schema fields

W0078 - Overview

• Message type: E = Error

• Message class: W0 - Customizing - ISR

• Message number: 078

• Message text: Maintain the application and calculation schema fields

What causes this issue?

The determination type has the value "A" (Purchase price determination
using schema KALSM from table TWEVZ) but you did not maintain the
"Application" and "Schema" fields.

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?

You must maintain both the "Application" and "Schema" fields.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message W0078 - Maintain the application and calculation schema fields ?

  SAP Error Message:
  W0078 - Maintain the application and calculation schema fields
  
  
  Cause:
  This warning message appears when the system detects that the application and calculation schema fields have not been properly maintained or configured in the customizing settings. Specifically, it usually occurs in the context of pricing, condition technique, or other areas where schemas define how calculations or applications are processed.
  In other words, the system expects that for a given application (e.g., pricing, output determination), the corresponding calculation schema (or condition schema) must be assigned and maintained. If this assignment is missing or incomplete, the system issues this warning.
  
  When does it occur?
  
  During pricing procedure configuration or execution.
  When setting up condition techniques.
  While maintaining schema assignments in customizing.
  Possibly during document processing if the system cannot find the relevant schema.
  
  
  
  Solution:
  
  
  Check Customizing Settings:
  
  Go to the relevant IMG path depending on the module (e.g., Sales and Distribution ? Basic Functions ? Pricing ? Pricing Control).
  Verify that the