How To Fix F2151 - Customer & already exists

F2151 - Overview

• Message type: E = Error

• Message class: F2 - Master Data Maintenance: Customer, Vendor

• Message number: 151

• Message text: Customer & already exists

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 F2151 - Customer & already exists ?

  The SAP error message F2151, which states "Customer & already exists," typically occurs when you attempt to create a new customer record in the SAP system, but a customer with the same identification (such as customer number or name) already exists in the database. This can happen in various modules, including Financial Accounting (FI) and Sales and Distribution (SD).
  
  Cause:
  
  Duplicate Customer Record: The most common cause is that the customer you are trying to create already exists in the system, either in the same company code or in a different one.
  Incorrect Input: You may have entered the customer number or name incorrectly, leading to a perceived duplicate.
  Data Migration Issues: If data was migrated from another system, there may be duplicates that were not cleaned up.
  
  
  Solution:
  
  
  Check for Existing Customer:
  
  Use transaction codes like FD03 (Display Customer) or XD03 (Display Customer - General Data) to search for the customer using different criteria (e.g., name,