How To Fix WB839 - Material group &2 is not assigned to customer &1

SAP Error Message - Details

• Message type: E = Error

• Message class: WB - Messages for assortment list

• Message number: 839

• Message text: Material group &2 is not assigned to customer &1

What causes this issue?

The material group was not assigned to the customer in plant
maintenance.

System Response

Placement data is not posted.

How to fix this error?

Assign the relevant material group to the customer in plant
maintenance. .

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WB839 - Material group &2 is not assigned to customer &1 ?

  The SAP error message WB839 indicates that a specific material group is not assigned to a customer in the system. This error typically occurs when you are trying to perform a transaction that involves a customer and a material group, but the necessary assignment has not been made in the system.
  Cause:
  The error is caused by the absence of a link between the customer and the material group in the SAP system. This can happen in various scenarios, such as:
  
  New Customer or Material Group: If a new customer or material group has been created but not yet assigned.
  Data Migration: During data migration or system upgrades, some assignments may not have been carried over.
  Configuration Changes: Changes in configuration settings or business processes that affect how customers and material groups are linked.
  
  Solution:
  To resolve the WB839 error, you need to assign the material group to the customer. Here are the steps to do this:
  
  
  Access the Customer Master Data:
  
  Go to transaction code XD02 (Change Customer) or VD02 (Change Customer - Sales Area).
  Enter the customer number and select the appropriate view (usually the Sales Area Data view).
  
  
  
  Assign Material Group:
  
  Navigate to the relevant tab where material group assignments are made (this may vary based on your configuration).
  Look for a field related to material groups and ensure that the required material group is assigned to the customer.
  
  
  
  Save Changes:
  
  After making the necessary assignments, save the changes.
  
  
  
  Check Material Group Configuration:
  
  If the material group is not available for assignment, you may need to check the configuration of material groups in the system. This can be done through transaction code OMD1 (Define Material Groups).
  
  
  
  Testing:
  
  After making the changes, try to perform the transaction again to see if the error persists.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  XD02 / VD02: Change Customer Master Data
  OMD1: Define Material Groups
  MM01: Create Material Master (to check material group settings)
  
  
  
  User Roles and Authorizations: Ensure that you have the necessary authorizations to make changes to customer master data.
  
  
  Documentation: Refer to SAP documentation or your organization's internal documentation for specific guidelines on managing customer and material group assignments.
  
  
  Support: If you continue to experience issues, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.