How To Fix /VSO/M_MSG018 - Customer number &1 is not in the customer master

SAP Error Message - Details

• Message type: E = Error

• Message class: /VSO/M_MSG -

• Message number: 018

• Message text: Customer number &1 is not in the customer master

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /VSO/M_MSG018 - Customer number &1 is not in the customer master ?

  The SAP error message /VSO/M_MSG018 Customer number &1 is not in the customer master indicates that the system is unable to find the specified customer number in the customer master data. This can occur in various scenarios, such as when trying to create a sales order, process a delivery, or perform any transaction that requires customer information.
  
  Cause:
  
  Incorrect Customer Number: The customer number entered may be incorrect or mistyped.
  Customer Not Created: The customer may not have been created in the system yet.
  Customer Deactivation: The customer might have been deactivated or marked for deletion.
  Data Synchronization Issues: If the system is integrated with other systems, there may be synchronization issues leading to missing customer data.
  Incorrect Company Code: The customer number may exist, but not in the company code you are working with.
  
  
  Solution:
  
  Verify Customer Number: Double-check the customer number for any typos or errors.
  Check Customer Master Data:
  Use transaction code XD03 (Display Customer) or VD03