How To Fix PPEGUI412 - Duplicated item numbers not allowed

PPEGUI412 - Overview

• Message type: E = Error

• Message class: PPEGUI - Message Interface

• Message number: 412

• Message text: Duplicated item numbers not allowed

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 PPEGUI412 - Duplicated item numbers not allowed ?

  The SAP error message PPEGUI412, which states "Duplicated item numbers not allowed," typically occurs in the context of the SAP Production Planning and Execution (PP) module, particularly when dealing with planning or production orders, or when creating or modifying items in a bill of materials (BOM) or routing.
  
  Cause:
  The error is triggered when there are duplicate item numbers in a list where unique item numbers are required. This can happen in various scenarios, such as:
  
  When trying to create or modify a BOM or routing that contains the same item number more than once.
  When entering data in a planning table or transaction that expects unique identifiers for each item.
  
  
  Solution:
  To resolve the PPEGUI412 error, you can take the following steps:
  
  
  Identify Duplicates:
  
  Review the list of items you are trying to enter or modify. Look for any duplicate item numbers.
  You can use transaction codes like CS03 (Display BOM) or CA03 (Display Routing) to check existing