How To Fix KO238 - Order number may not contain special characters

KO238 - Overview

• Message type: E = Error

• Message class: KO - Master data for CO orders

• Message number: 238

• Message text: Order number may not contain special characters

What causes this issue?

You have entered an order number which includes a prohibited character
(for example '*').

How to fix this error?

Enter an order number which does not include any prohibited characters.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KO238 - Order number may not contain special characters ?

  The SAP error message KO238, which states "Order number may not contain special characters," typically occurs when you are trying to enter an order number that includes characters that are not allowed by the system. This can happen in various SAP modules, particularly in the context of production orders, sales orders, or other types of order management.
  
  Cause:
  The error is triggered when the order number you are trying to input contains special characters such as:
  
  Symbols (e.g., @, #, $, %, &, *, etc.)
  Spaces
  Punctuation marks (e.g., !, ?, ., /, etc.)
  
  SAP has specific rules regarding the format of order numbers, and these rules often restrict the use of special characters to ensure data integrity and consistency.
  
  Solution:
  To resolve the KO238 error, you should:
  
  
  Check the Order Number: Review the order number you are trying to enter and ensure it only contains valid characters. Typically, valid characters include:
  
  Alphanumeric characters (A-Z, 0-9)
  Underscores (_) or hyphens (-)