How To Fix MDG_BS_MAT_SI020 - Duplicate entries for sales tax category &1, country &2

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_BS_MAT_SI - Message Class : Material Replication Services Implementation

• Message number: 020

• Message text: Duplicate entries for sales tax category &1, country &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_BS_MAT_SI020 - Duplicate entries for sales tax category &1, country &2 ?

  The SAP error message MDG_BS_MAT_SI020 indicates that there are duplicate entries for a specific sales tax category in a given country within the Master Data Governance (MDG) system. This error typically arises during the creation or update of material master data when the system detects that the same sales tax category is assigned to multiple entries for the same country, which violates the uniqueness constraint.
  Cause:
  
  Duplicate Entries: The most common cause is that there are multiple records in the system for the same sales tax category and country combination.
  Data Migration Issues: If data was migrated from another system, it may have introduced duplicates.
  Incorrect Configuration: There may be issues in the configuration of the tax categories or the way they are assigned to materials.
  
  Solution:
  
  
  Identify Duplicates:
  
  Use transaction codes like SE16 or SE11 to query the relevant database tables (e.g., T007 for tax categories) to find duplicate entries for the specified sales tax category and country.
  Check the material master data for the specific entries that are causing the error.
  
  
  
  Remove or Correct Duplicates:
  
  If duplicates are found, determine which entries are valid and which can be deleted or corrected.
  You may need to delete or merge duplicate entries to ensure that each sales tax category is unique for the specified country.
  
  
  
  Data Validation:
  
  Implement data validation rules to prevent future duplicates from being created.
  Ensure that the data entry process includes checks for existing entries before allowing new ones to be saved.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or consult with your SAP support team for specific guidelines on handling tax categories and ensuring data integrity.
  
  
  
  Testing:
  
  After making corrections, test the changes by attempting to create or update the material master data again to ensure that the error no longer occurs.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  MM01: Create Material
  MM02: Change Material
  MM03: Display Material
  SE16/SE11: Data Browser/Table Display
  
  
  Tables: Key tables to check include:
  
  T007: Tax Categories
  MARA: General Material Data
  MARC: Plant Data for Material
  
  
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on handling this error.
  
  By following these steps, you should be able to resolve the MDG_BS_MAT_SI020 error and ensure that your material master data is accurate and compliant with the required tax category constraints.