How To Fix WS191 - Document &1 already posted via customer settlement list &2

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 191

• Message text: Document &1 already posted via customer settlement list &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WS191 - Document &1 already posted via customer settlement list &2 ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WS191 Document &1 already posted via customer settlement list &2
  
  Cause:
  This error occurs when you try to post a document (usually a customer invoice or credit memo) that has already been posted through a customer settlement list. In SAP, a customer settlement list is used to settle multiple customer invoices or credit memos at once. If you attempt to post the same document again individually or through another settlement, the system prevents duplication by issuing this error.
  In other words, the document number &1 has already been processed and posted as part of the customer settlement list &2. Attempting to post it again leads to this error.
  
  Explanation:
  
  Document &1: The document number you are trying to post.
  Customer settlement list &2: The settlement list through which the document has already been posted.
  
  This is a safeguard to avoid double posting of the same document, which would cause inconsistencies in accounting and customer balances.
  
  Solution:
  
  
  Check if the document has already been posted:
  
  Use transaction FB03 to display the document &1 and verify its status.
  Check if it is already cleared or settled.
  
  
  
  Review the customer settlement list:
  
  Use transaction FPCJ or the relevant settlement transaction to display the settlement list &2.
  Confirm that the document is included in this settlement.
  
  
  
  Avoid duplicate posting:
  
  Do not post the same document again if it has already been settled.
  If you need to reverse or correct the document, use the appropriate reversal transaction (e.g., FB08 for document reversal).
  
  
  
  If the document needs to be re-posted:
  
  Reverse the original posting first.
  Then post the document again as required.
  
  
  
  Check for any custom enhancements or user exits:
  
  Sometimes, custom code may cause this error if it tries to post documents without checking their status.
  
  
  
  
  Additional Information:
  
  This error is common in accounts receivable processes where customer settlements are used to clear multiple invoices.
  It helps maintain data integrity by preventing duplicate postings.
  Always ensure proper coordination between settlement processing and individual document postings.
  If you are unsure about the status of the document or settlement, consult your FI (Financial Accounting) team.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error Message
  WS191 Document &1 already posted via customer settlement list &2
  
  
  Cause
  Document already posted as part of a customer settlement list.
  
  
  Solution
  Verify document and settlement list; avoid duplicate posting; reverse if necessary before reposting.
  
  
  Transactions
  FB03 (Display Document), FPCJ (Settlement List), FB08 (Reversal)
  
  
  
  
  If you need further assistance, please provide the document number and settlement list number, and I can help you analyze the specific case.