How To Fix WS154 - Tax account & found and posted with posting key &

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 154

• Message text: Tax account & found and posted with posting key &

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WS154 - Tax account & found and posted with posting key & ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WS154: Tax account & found and posted with posting key &
  
  Cause:
  This error occurs during document posting in Financial Accounting (FI) when the system detects that a tax account (usually a tax ledger account) has already been posted with a specific posting key in the current document or transaction. The message indicates that the tax account is being posted again with the same posting key, which is not allowed.
  In other words, the system prevents duplicate postings to the same tax account with the same posting key within a single document to avoid inconsistencies or double postings.
  
  When does it typically occur?
  
  During manual or automatic posting of tax amounts in FI documents.
  When tax codes are assigned to tax accounts and the system tries to post tax amounts multiple times to the same account with the same posting key.
  In scenarios involving tax adjustments, credit memos, or clearing documents where tax postings are recalculated or duplicated.
  
  
  Solution:
  
  
  Check the Document Line Items:
  
  Review the document being posted to identify if the tax account is indeed posted more than once with the same posting key.
  Use transaction codes like FB03 (Display Document) or FB02 (Change Document) to inspect line items.
  
  
  
  Review Tax Code Configuration:
  
  Verify the tax code settings in OB40 (Tax Account Determination) or FTXP (Tax Codes).
  Ensure that tax accounts are correctly assigned and that no duplicate tax accounts are assigned for the same tax code and posting key.
  
  
  
  Adjust Posting Logic:
  
  If the posting is done via custom programs or interfaces, check the logic to avoid posting the same tax account twice with the same posting key.
  Modify the program or interface to consolidate tax postings or split them correctly.
  
  
  
  Check for Duplicate Tax Accounts:
  
  Sometimes, multiple tax accounts might be assigned to the same tax code and posting key, causing the system to post multiple times.
  Correct the assignment to have unique tax account and posting key combinations.
  
  
  
  Use SAP Notes and Support:
  
  Search for relevant SAP Notes if the issue persists, as there might be patches or corrections available.
  Example SAP Note: 0000000 (replace with actual note number if known).
  
  
  
  
  Related Information:
  
  Posting Key: Defines the type of posting (debit or credit) and the account type (customer, vendor, general ledger).
  Tax Account: The GL account where tax amounts are posted.
  Transaction Codes:
  
  OB40: Maintain Tax Account Determination
  FTXP: Maintain Tax Codes
  FB03: Display Document
  FB02: Change Document
  
  
  Modules Involved: FI (Financial Accounting), especially the Tax and GL Accounting components.
  Common Scenarios: Tax postings during invoice posting, credit memos, tax adjustments, and clearing documents.
  
  
  If you provide the exact posting key and tax account details (from the message placeholders &), I can help you analyze the specific case further.