How To Fix /PLMI/PPECMP350 - &1 &2 already exists in assembly header &3

SAP Error Message - Details

• Message type: E = Error

• Message class: /PLMI/PPECMP -

• Message number: 350

• Message text: &1 &2 already exists in assembly header &3

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /PLMI/PPECMP350 - &1 &2 already exists in assembly header &3 ?

  The SAP error message /PLMI/PPECMP350 &1 &2 already exists in assembly header &3 typically occurs in the context of production planning and execution, particularly when dealing with assembly processing in SAP. This error indicates that there is an attempt to add a component (identified by &1 and &2) to an assembly header (identified by &3) where that component already exists.
  Cause:
  
  
  Duplicate Component Entry: The most common cause of this error is that the component you are trying to add to the assembly already exists in the assembly header. This can happen if:
  
  The component was previously added but not properly removed.
  There is a mistake in the data entry process where the same component is being added multiple times.
  
  
  
  Data Integrity Issues: There may be issues with the data integrity in the system, such as inconsistencies in the database or incorrect configurations.
  
  
  User Error: Users may inadvertently attempt to add the same component multiple times due to misunderstanding the process or system behavior.
  
  
  Solution:
  
  
  Check Existing Components: Before adding a component to the assembly, check the existing components in the assembly header to confirm whether the component is already present. You can do this by:
  
  Navigating to the assembly header in the SAP GUI and reviewing the list of components.
  Using transaction codes like CS03 (Display Material BOM) to view the Bill of Materials (BOM) associated with the assembly.
  
  
  
  Remove Duplicate Entries: If you find that the component is already listed, you can either:
  
  Remove the duplicate entry if it was added in error.
  Update the existing entry if changes are needed instead of adding a new one.
  
  
  
  Review Process: Ensure that the process for adding components to assemblies is well understood by all users involved. Provide training or documentation if necessary to prevent user errors.
  
  
  Check for System Issues: If the error persists despite checking for duplicates, it may be necessary to investigate potential system issues or data integrity problems. This could involve:
  
  Running consistency checks on the relevant data.
  Consulting with your SAP Basis or technical team to check for any underlying issues in the system.
  
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant notes or patches that may address this specific error message. There may be updates or fixes provided by SAP that can resolve the issue.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CS01 (Create Material BOM), CS02 (Change Material BOM), and CS03 (Display Material BOM) for managing BOMs and assemblies.
  Documentation: Review SAP documentation related to production planning and assembly processing for best practices and guidelines.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the error and prevent it from occurring in the future.