How To Fix C2157 - Please select a sales order or a change number

C2157 - Overview

• Message type: E = Error

• Message class: C2 - Other messages production orders

• Message number: 157

• Message text: Please select a sales order or a change number

What causes this issue?

You have selected an action that relates to a sales order or to a
change number but the cursor is not placed on one of these types of
object.

How to fix this error?

Place the cursor on the desired object.

Error message extract from SAP system. Copyright SAP SE.

C2157 - Details

• The SAP error message C2157, which states "Please select a sales order or a change number," typically occurs in the context of sales order processing or when trying to access or modify a sales order in the SAP system. Here’s a breakdown of the cause, potential solutions, and related information for this error:
  
  Cause:
  
  No Sales Order Selected: The most common reason for this error is that the user has not selected a sales order or change number in the relevant transaction.
  Incorrect Transaction Code: The user may be using a transaction code that requires a sales order or change number but has not provided one.
  Authorization Issues: The user may not have the necessary authorizations to view or modify the sales order.
  Data Entry Error: There may be a mistake in the data entry, such as entering an invalid sales order number.
  
  
  Solution:
  
  
  Select a Sales Order: Ensure that you have selected a valid sales order