How To Fix 5G199 - Duplicate scheme IDs must all be unique and correspond to T5G30

SAP Error Message - Details

• Message type: E = Error

• Message class: 5G - HR: Messages for Britain

• Message number: 199

• Message text: Duplicate scheme IDs must all be unique and correspond to T5G30

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 5G199 - Duplicate scheme IDs must all be unique and correspond to T5G30 ?

  The SAP error message 5G199 indicates that there is a duplication issue with scheme IDs in the context of the configuration for the tax calculation or similar processes. This error typically arises when you are trying to create or modify tax schemes in the system, and the scheme IDs you are using are not unique.
  Cause:
  The error occurs due to the following reasons:
  
  Duplicate Scheme IDs: You are attempting to create or modify a tax scheme with an ID that already exists in the system.
  Incorrect Configuration: The configuration in the related tables (like T5G30) may not be set up correctly, leading to conflicts in scheme IDs.
  Data Migration Issues: If data has been migrated from another system, there may be duplicate entries that were not cleaned up.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Existing Scheme IDs:
  
  Go to the relevant transaction (e.g., SE11 for Data Dictionary) and check the entries in table T5G30 to see the existing scheme IDs.
  Ensure that the scheme ID you are trying to create or modify does not already exist.
  
  
  
  Modify or Delete Duplicates:
  
  If you find duplicates, you may need to modify or delete the existing entries to ensure that all scheme IDs are unique.
  If you are unsure about deleting entries, consult with your SAP administrator or a functional consultant.
  
  
  
  Review Configuration:
  
  Ensure that your configuration settings in the relevant customizing transactions (like OBYZ for tax configuration) are correct and do not lead to conflicts.
  
  
  
  Data Consistency Check:
  
  Run consistency checks or reports to identify any inconsistencies in your tax configuration that may lead to this error.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to tax configuration for any specific guidelines or updates that may address this issue.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking for duplicates and reviewing configurations, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  T5G30 Table: This table contains the definitions of tax schemes. Understanding its structure and contents is crucial for resolving the error.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OBYZ (for tax configuration) and SE11 (for table display).
  SAP Notes: Check for any SAP Notes that may provide additional insights or solutions related to this error message.
  
  By following these steps, you should be able to identify and resolve the cause of the 5G199 error in your SAP system.