How To Fix WVFI_ADD001 - Entry of sales order and item not allowed

WVFI_ADD001 - Overview

• Message type: E = Error

• Message class: WVFI_ADD - Messages from Add-On IDoc Processing Store Inventory

• Message number: 001

• Message text: Entry of sales order and item not allowed

What causes this issue?

This item contains an entry for sales order &V1& and sales order item
&V2&. However, no special stock indicator was entered.

System Response

The system cannot post this item.

How to fix this error?

If you wich to enter a count for a special stock, enter the relevant
special stock indicator.
If errors occurred when entering the sales order and sales order item,
you can use the IDoc Editor to delete the sales order and sales order
item fields in this IDoc segment and post the Idoc again.

Error message extract from SAP system. Copyright SAP SE.

WVFI_ADD001 - Details

• The SAP error message WVFI_ADD001 ("Entry of sales order and item not allowed") typically occurs in the context of sales order processing, particularly when trying to add or modify a sales order or its items in a way that is not permitted by the system's configuration or business rules.
  Causes:
  
  Sales Order Status: The sales order may be in a status that does not allow further modifications (e.g., completed, closed, or canceled).
  Document Type Restrictions: Certain sales order document types may have restrictions on modifications or additions based on the configuration in the system.
  Item Category Settings: The item category of the sales order item may not allow for the addition of new items or modifications.
  User Authorizations: The user may not have the necessary authorizations to make changes to the sales order.
  Configuration Settings: Custom settings in the sales order processing configuration may restrict certain actions based on business rules.
  
  Solutions:
  
  Check Sales Order Status: Verify the