How To Fix V4009 - The customer no. in the sched.agreement differs from the one selected

SAP Error Message - Details

• Message type: E = Error

• Message class: V4 - Nachrichten Verkauf (Variable Meldungen und EDI-Meldungen)

• Message number: 009

• Message text: The customer no. in the sched.agreement differs from the one selected

What causes this issue?

The customer number entered in the selection does not agree with the
customer number in the <DS:GLOS.scheduling_agreement>scheduling
agreement</>.

System Response

The system does not allow the selection or generates a warning message.

How to fix this error?

Please compare the customer number you entered in the selection with
the number in the scheduling agreement. You may be processing the wrong
scheduling agreement.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message V4009 - The customer no. in the sched.agreement differs from the one selected ?

  The SAP error message V4009 indicates that there is a mismatch between the customer number specified in a scheduling agreement and the customer number that has been selected in the transaction you are trying to execute. This error typically occurs in the context of sales and distribution (SD) processes, particularly when dealing with scheduling agreements.
  
  Cause:
  
  Mismatch in Customer Numbers: The customer number in the scheduling agreement does not match the customer number in the sales order or delivery document you are trying to create or process.
  Incorrect Document Reference: You may be referencing a scheduling agreement that is not associated with the selected customer.
  Data Entry Error: There may have been a manual entry error when inputting the customer number or selecting the scheduling agreement.
  
  
  Solution:
  
  
  Verify Customer Numbers: Check the customer number in the scheduling agreement and ensure it matches the customer number you are using in your transaction. You can do this by:
  
  Navigating