How To Fix IW063 - Invalid account assignment category; see long text

IW063 - Overview

• Message type: E = Error

• Message class: IW - Order Processing

• Message number: 063

• Message text: Invalid account assignment category; see long text

What causes this issue?

The system should assign a component to an account assignment category.

System Response

The account assignment category is not defined.

How to fix this error?

In Customizing define the account assignment category for service- and
maintenance orders.
In the standard, define the following values for the order category 30:
Account assignment type (general): F
Account assignment type (project): Q
Account assignment type (sales order): E
Sales document project: D

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.

IW063 - Details

• The SAP error message IW063, which states "Invalid account assignment category; see long text," typically occurs in the context of creating or processing maintenance orders or service orders in the SAP system. This error indicates that there is an issue with the account assignment category being used in the order.
  
  Cause:
  The error can be caused by several factors, including:
  
  Incorrect Account Assignment Category: The account assignment category specified in the order does not match the expected values for the type of order being processed.
  
  Configuration Issues: The configuration settings in the SAP system for the order type or account assignment categories may not be set up correctly.
  Missing Master Data: The relevant master data (such as cost centers, internal orders, or projects) may not be properly defined or may be inactive.
  Authorization Issues: The user may not have the necessary authorizations to use certain account assignment categories.
  
  
  Solution:
  To resolve the IW063 error, you can take the