How To Fix WXP678 - You cannot convert a store into a customer

SAP Error Message - Details

• Message type: E = Error

• Message class: WXP - Retail Planning

• Message number: 678

• Message text: You cannot convert a store into a customer

What causes this issue?

You have tried to create an allocation table in manual planning. In the
interface, you configured your system so that the system is converted
using customers. Plant &V1& could not be converted.

System Response

The allocation table cannot be created.

How to fix this error?

Check the customer data and the plant data.
Check if the indicator for converting the plant to customer must be
set. This must only be done if you have entered the plant or plant
group as the plant dimension.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WXP678 - You cannot convert a store into a customer ?

  SAP Error Message:
  
  WXP678 - You cannot convert a store into a customer
  
  Cause:
  This warning message occurs when you attempt to convert a store (a specific business partner role or organizational unit in SAP) into a customer. In SAP, certain master data objects like stores and customers are distinct entities with different roles and attributes. The system does not allow a direct conversion from a store to a customer because they are managed separately in the system.
  Typically, this happens in scenarios involving Business Partner (BP) master data where a store is created as a BP role, and an attempt is made to convert or assign it as a customer role without following the correct procedure.
  
  Explanation:
  
  Store and Customer are different roles in SAP Business Partner master data.
  A store is often linked to a physical location or sales point.
  A customer is a business partner role used for sales transactions.
  Direct conversion is not supported because the underlying data structures and business logic differ.
  
  
  Solution:
  To resolve this issue, you should:
  
  
  Create a new Customer master record instead of converting the store.
  
  Use transaction XD01 (Create Customer) or BP (Business Partner) to create a new customer role for the business partner.
  
  
  
  Assign the Customer role to the existing Business Partner if you are using the Business Partner approach:
  
  Use transaction BP.
  Open the existing Business Partner (store).
  Add the Customer (Sales Area) role to the BP.
  Maintain the required customer-specific data (sales area data, company code data, etc.).
  
  
  
  Do not attempt to convert or change the store role into a customer role directly. Instead, add the customer role to the BP or create a separate customer master.
  
  
  If you need to link the store and customer, maintain the relationship via the Business Partner roles or through custom fields/assignments as per your business process.
  
  
  
  Additional Information:
  
  This message is a warning (WXP678), so the system prevents the action to avoid data inconsistencies.
  The Business Partner approach (introduced in SAP ERP 6.0 and S/4HANA) separates roles like store, customer, vendor, etc., under one BP number but with different roles.
  Always follow the SAP recommended process for creating and maintaining master data roles.
  Check SAP Notes or your system documentation for any specific enhancements or customizations related to your environment.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Attempt to convert a store role into a customer role directly, which is not allowed.
  
  
  Solution
  Create a new customer master or add the customer role to the existing Business Partner.
  
  
  Related Info
  Use transaction BP to manage roles; stores and customers are distinct roles in SAP.
  
  
  
  
  If you need further assistance, please provide details about your SAP system version and the exact steps you are performing.