How To Fix /SCWM/LM_CORE_APPL121 - External business partner &1 already exists; business partner not created

/SCWM/LM_CORE_APPL121 - Overview

• Message type: E = Error

• Message class: /SCWM/LM_CORE_APPL -

• Message number: 121

• Message text: External business partner &1 already exists; business partner not created

Self-Explanatory Message

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/SCWM/LM_CORE_APPL121 - Details

• The SAP error message /SCWM/LM_CORE_APPL121 indicates that there is an attempt to create a business partner in the system, but a business partner with the same identifier already exists. This error typically occurs in the context of SAP Extended Warehouse Management (EWM) or Logistics Management.
  
  Cause:
  
  
  Duplicate Business Partner: The primary cause of this error is that the business partner you are trying to create already exists in the system. This could be due to:
  
  Manual entry of the same business partner.
  Data migration or import processes that have already created the business partner.
  Integration with other systems that may have created the business partner beforehand.
  
  
  
  Incorrect Data Entry: Sometimes, the data being used to create the business partner may not be formatted correctly or may not match the existing records, leading to confusion in the system.
  
  
  
  Solution:
  
  
  Check Existing Business Partners: 
  
  Use transaction codes like BP (Business Partner) to search for the existing business partner using the