How To Fix SEPM_BO_COMMON402 - Customer cannot be changed in a saved sales order

SEPM_BO_COMMON402 - Overview

• Message type: E = Error

• Message class: SEPM_BO_COMMON - EPM: Common Messages for EPM Business Objects

• Message number: 402

• Message text: Customer cannot be changed in a saved sales order

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SEPM_BO_COMMON402 - Customer cannot be changed in a saved sales order ?

  The SAP error message SEPM_BO_COMMON402, which states "Customer cannot be changed in a saved sales order," typically occurs when there is an attempt to modify the customer information in a sales order that has already been saved. This restriction is in place to maintain data integrity and ensure that the sales order reflects the correct customer information as it was originally intended.
  
  Cause:
  
  Data Integrity: Once a sales order is saved, the customer information is locked to prevent inconsistencies in the order processing and billing.
  Business Rules: SAP enforces certain business rules that prevent changes to critical fields like the customer in a saved sales order to avoid complications in logistics, accounting, and reporting.
  Document Flow: If the sales order has already been processed (e.g., delivery created, invoice generated), changing the customer could lead to discrepancies in the document flow.
  
  
  Solution:
  
  Create a New Sales Order: If you need to change the customer, the recommended approach