How To Fix 06388 - Not possible to set tax code without tax calculation schema

06388 - Overview

• Message type: E = Error

• Message class: 06 -

• Message number: 388

• Message text: Not possible to set tax code without tax calculation schema

What causes this issue?

The system was not able to find an assignment of the entered
<GL:tax_code>tax code</> to a tax calculation schema, because either

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

no <GL:company_code>company code</> has been maintained for the
purchasing organization, or
no tax calculation schema has been maintained for company code &V1& of
the relevant <GL:plant>plant</>.
&WHAT_TO_DO& (system administrator):
In the second case (no tax calculation schema maintained) define a
calculation schema for the country of the company code via the
Financial Accounting Customizing facility.

To branch to the IMG, click <DS:SIMG.SIMG_CFMENUORFBOBBG>here</>.
ENDIF

Error message extract from SAP system. Copyright SAP SE.

06388 - Details

• The SAP error message "06388 Not possible to set tax code without tax calculation schema" typically occurs when there is an attempt to assign a tax code in a transaction or document where the system does not have a tax calculation schema defined. This can happen in various scenarios, such as during invoice processing, sales order creation, or other financial transactions that involve tax calculations.
  
  Cause:
  
  Missing Tax Calculation Schema: The tax calculation schema is not defined for the company code or the relevant transaction type.
  
  Configuration Issues: The tax configuration in the system may not be set up correctly, leading to the inability to determine the appropriate tax code.
  Document Type Settings: The document type being used may not be linked to a tax calculation schema.
  User Role/Authorization: The user may not have the necessary authorizations to access or modify tax-related settings.
  
  
  Solution:
  
  
  Define Tax Calculation Schema:
  
  Go to the SAP Customizing Implementation Guide (SPRO).
  Navigate to Financial