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.

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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 (Display Customer - Sales Area) to search for the customer number.
  Ensure that the customer exists in the system and is active.
  
  
  Create Customer: If the customer does not exist, you may need to create it using transaction code XD01 (Create Customer) or VD01 (Create Customer - Sales Area).
  Check Status: If the customer exists but is inactive, you may need to reactivate it or check with your administrator for the appropriate action.
  Company Code Check: Ensure that you are using the correct company code. If the customer exists in a different company code, you may need to switch to that code or create the customer in the relevant company code.
  Data Synchronization: If your SAP system is integrated with other systems (like CRM or external databases), ensure that the data is synchronized properly.
  
  Related Information:
  
  Transaction Codes:
  
  XD03 - Display Customer
  VD03 - Display Customer - Sales Area
  XD01 - Create Customer
  VD01 - Create Customer - Sales Area
  
  
  User Roles: Ensure that you have the necessary permissions to view or create customer master data.
  SAP Notes: Check SAP Notes for any known issues or patches related to customer master data management.
  Documentation: Refer to SAP documentation for detailed procedures on managing customer master data.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant for further investigation.