How To Fix WT813 - Recipient &1, material &2: fields to be converted already maintained

SAP Error Message - Details

• Message type: E = Error

• Message class: WT - Retail: Replenishment

• Message number: 813

• Message text: Recipient &1, material &2: fields to be converted already maintained

What causes this issue?

At least one of the fields <DS:DE.WRPRWUG>Minimum target stock</>,
<DS:DE.WRPRWOG>Maximum target stock</> or <DS:DE.ANZPR>Number of
forecast periods</> has already been maintained for
<DS:DE.WRKUNNR>recipient</> &v1& and material &v2&. The fields cannot
therefore be converted automatically.

System Response

No changes are made to any of the three fields.

How to fix this error?

Check if the data is up to date, and make any necessary changes in
<DS:TRAN.MM42>material master maintenance</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WT813 - Recipient &1, material &2: fields to be converted already maintained ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WT813 Recipient &1, material &2: fields to be converted already maintained
  
  Meaning / Cause:
  This error occurs during the creation or maintenance of stock transport orders (STO) or transfer postings involving warehouse tasks or warehouse management (WM) processes. Specifically, it indicates that the fields you are trying to convert or update for a particular recipient (plant or storage location) and material have already been maintained or converted previously.
  In other words, the system detects that the conversion or update you are attempting is redundant because the relevant data fields (such as stock types, stock categories, or WM-related fields) have already been set or converted for the given recipient and material.
  This often happens in scenarios involving:
  
  Conversion of stock from one stock type to another (e.g., unrestricted to blocked stock).
  Transfer postings where the system tries to convert fields that are already converted.
  Warehouse management processes where stock data is synchronized or updated.
  
  
  Typical Causes:
  
  Attempting to convert or update stock fields that have already been converted or maintained.
  Duplicate or repeated execution of a conversion program or transaction.
  Inconsistent or redundant data entries in the warehouse management or inventory management modules.
  Custom programs or user exits trying to update fields unnecessarily.
  
  
  Solution / How to Resolve:
  
  
  Check the current status of the stock fields:
  
  Verify if the fields for the recipient and material have already been converted or maintained.
  Use transaction codes like MMBE (Stock Overview) or LX03 (Warehouse Stocks) to check stock status.
  
  
  
  Avoid duplicate conversions:
  
  Ensure that the conversion or update process is not being run multiple times unnecessarily.
  If you are running a custom program or report, add checks to prevent redundant updates.
  
  
  
  Review the process flow:
  
  Confirm that the business process or transaction flow is correct and does not attempt to convert the same stock fields repeatedly.
  
  
  
  Check customizing and master data:
  
  Verify that the material master and warehouse master data are consistent.
  Check if any recent changes in configuration or master data might cause this issue.
  
  
  
  If using a standard SAP program:
  
  Look for OSS notes related to this error message and the specific transaction or program you are using.
  SAP Notes might provide patches or corrections.
  
  
  
  Debugging:
  
  If the issue persists, debug the program or transaction to identify why the system thinks the fields are already maintained.
  Check the relevant tables (e.g., LQUA, LAGP, MARD) for stock and warehouse data.
  
  
  
  
  Related Information:
  
  
  Message Class: WT (Warehouse Management)
  
  
  Transaction Codes: WM transactions like LT01, LT10, or inventory transactions.
  
  
  Tables to check:  
  
  LQUA (Quants)  
  LAGP (Storage Bins)  
  MARD (Storage Location Data for Material)  
  MKPF/MSEG (Material Document Header/Segment)
  
  
  
  SAP Notes: Search for notes with message WT813 or related to warehouse stock conversion issues.
  
  
  
  Summary:
  The error WT813 indicates an attempt to convert or maintain stock fields for a recipient and material that have already been processed. To resolve it, verify the current stock status, avoid duplicate conversions, check master data consistency, and review the process flow to prevent redundant updates.
  
  If you provide the exact transaction or process where this error occurs, I can help with more specific guidance.