How To Fix /SAPAPO/MC01120 - Requirement is already defined

/SAPAPO/MC01120 - Overview

• Message type: E = Error

• Message class: /SAPAPO/MC01 -

• Message number: 120

• Message text: Requirement is already defined

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 /SAPAPO/MC01120 - Requirement is already defined ?

  The SAP error message /SAPAPO/MC01120 Requirement is already defined typically occurs in the context of SAP Advanced Planning and Optimization (APO) when you are trying to create or modify a requirement (such as a planned order, production order, or other demand-related entries) that has already been defined in the system. This error indicates that the system has detected a duplicate entry for the requirement you are trying to create.
  
  Cause:
  
  
  Duplicate Entry: The most common cause of this error is that the requirement you are trying to create already exists in the system. This could happen if:
  
  You are trying to create a requirement with the same key or identifier as an existing one.
  There was a previous transaction that created the requirement, and you are attempting to create it again without realizing it.
  
  
  
  Data Consistency Issues: Sometimes, inconsistencies in the data or issues during data transfer can lead to the system incorrectly identifying a