How To Fix WS121 - Documents exist referencing & and date & for invoicing party &

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 121

• Message text: Documents exist referencing & and date & for invoicing party &

What causes this issue?

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

System Response

The system refers you to a possible double entry of the same invoice
document, and thus a possible double payment.

How to fix this error?

The current document can be posted despite this message. If you want to
avoid a possible double entry:
Check whether the current document has already been entered in the
system.
If necessary, check that your entry (reference number) is correct.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WS121 - Documents exist referencing & and date & for invoicing party & ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WS121 - Documents exist referencing & and date & for invoicing party &
  
  1. Cause:
  This error occurs when you try to create or post a document (such as an invoice or credit memo) for an invoicing party, but there are already existing documents referencing the same invoicing party and date. Essentially, SAP is indicating that there are duplicate or conflicting documents for the same invoicing party on the specified date.
  This situation often arises in scenarios involving:
  
  Duplicate billing attempts for the same invoicing party and billing date.
  Attempts to create a billing document when a related document already exists.
  Inconsistent or overlapping document references in the billing process.
  
  
  2. Solution:
  To resolve this error, consider the following steps:
  
  
  Check Existing Documents:
  
  Use transaction codes like VF03 (Display Billing Document) or VF05 (List Billing Documents) to find existing documents for the invoicing party and date mentioned in the error message.
  
  
  Verify Document Status:
  
  Confirm if the existing documents are already posted or in process. If they are posted, creating a duplicate document is not allowed.
  
  
  Avoid Duplicate Billing:
  
  Ensure that you are not trying to bill the same service or goods twice for the same invoicing party and date.
  
  
  Adjust Billing Date or Party:
  
  If appropriate, change the billing date or invoicing party to avoid conflicts.
  
  
  Check Customizing and User Exits:
  
  Sometimes, custom validations or user exits might enforce stricter checks on duplicate documents. Review any custom code or settings that might cause this error.
  
  
  Consult SAP Notes:
  
  Look for SAP Notes related to WS121 for any patches or known issues.
  
  
  
  3. Related Information:
  
  
  Transaction Codes:  
  
  VF01 - Create Billing Document  
  VF03 - Display Billing Document  
  VF05 - List Billing Documents  
  VA03 - Display Sales Order (to check related sales documents)
  
  
  
  Tables to Check:  
  
  VBRK - Billing Document Header  
  VBRP - Billing Document Item  
  VBAK - Sales Document Header
  
  
  
  Common Scenarios:  
  
  Billing for subcontracting or third-party orders where invoicing party differs from sold-to party.  
  Intercompany billing where documents are created for the same invoicing party multiple times.
  
  
  
  SAP Notes / KBAs:
  
  Search SAP Support Portal for message WS121 to find any specific notes or patches.
  
  
  
  If you provide the exact context (e.g., transaction used, business process), I can help tailor the solution further.