How To Fix WB2B421 - Sales Order Item Category &1 is not allowed for Sales order type &3

SAP Error Message - Details

• Message type: E = Error

• Message class: WB2B - Trading Contract

• Message number: 421

• Message text: Sales Order Item Category &1 is not allowed for Sales order type &3

What causes this issue?

Sales Order Category &V1& of Trading Contract Category &V2& is not a
valid entry for creating a Sales Order Item. The Item Category &V1& is
not maintained within the Sales Order Item Category Customizing.

System Response

The system does not allow further processing of this item &V4&

How to fix this error?

Check your entry.
Choose another entry or maintain the Sales Order Item category so that
the value is allowed within the Sales Order entry process.

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 WB2B421 - Sales Order Item Category &1 is not allowed for Sales order type &3 ?

  The SAP error message WB2B421 indicates that there is a mismatch between the sales order item category and the sales order type in your SAP system. This error typically occurs when you are trying to create or process a sales order, and the item category you are using is not permitted for the specified sales order type.
  Cause:
  
  Configuration Issues: The item category is not configured to be used with the specified sales order type in the system.
  Incorrect Item Category: The item category being used may not be appropriate for the type of sales order you are trying to create (e.g., standard order, return order, etc.).
  Master Data Issues: The material master or customer master data may not be set up correctly, leading to the use of an inappropriate item category.
  
  Solution:
  
  
  Check Configuration:
  
  Go to the configuration settings in SAP (Transaction code: SPRO).
  Navigate to Sales and Distribution > Sales > Sales Document > Sales Document Types.
  Check the settings for the sales order type in question and ensure that the item category you are trying to use is allowed for that sales order type.
  
  
  
  Review Item Category Determination:
  
  Check the item category determination settings (Transaction code: VOV4).
  Ensure that the correct item category is assigned based on the sales order type and other relevant criteria (like sales organization, distribution channel, etc.).
  
  
  
  Validate Master Data:
  
  Check the material master data (Transaction code: MM03) to ensure that the material is set up correctly for sales.
  Check the customer master data (Transaction code: VD03) to ensure that the customer is set up correctly for the sales order type.
  
  
  
  Use Correct Item Category:
  
  If the item category is not appropriate for the sales order type, consider using a different item category that is allowed for the sales order type you are working with.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or consult with your SAP support team for specific configurations related to your business processes.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SPRO (Customizing)
  VOV4 (Item Category Determination)
  MM03 (Material Master Display)
  VD03 (Customer Master Display)
  
  
  
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to this error message.
  
  
  Testing: After making changes, test the sales order creation process to ensure that the error is resolved.
  
  
  By following these steps, you should be able to identify the cause of the error and implement the necessary changes to resolve it.