How To Fix BOM557 - BOM already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: BOM - BOMs (2)

• Message number: 557

• Message text: BOM 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 BOM557 - BOM already exists ?

  The SAP error message BOM557 indicates that a Bill of Materials (BOM) you are trying to create already exists in the system. This error typically occurs when you attempt to create a new BOM with the same key (material number and plant) as an existing BOM.
  Cause:
  
  Duplicate Entry: You are trying to create a BOM for a material and plant combination that already has an existing BOM.
  Incorrect Data Entry: There may be a mistake in the data you are entering, leading to an attempt to create a BOM that already exists.
  Different BOM Usage: The existing BOM might be for a different usage (e.g., production, engineering, etc.), but the system still recognizes it as a duplicate based on the material and plant.
  
  Solution:
  
  Check Existing BOMs: Before creating a new BOM, check if a BOM already exists for the specified material and plant. You can do this using transaction code CS03 (Display BOM) or CS02 (Change BOM) to view existing BOMs.
  Use the Existing BOM: If a BOM already exists and is suitable for your needs, consider using or modifying the existing BOM instead of creating a new one.
  Change BOM Usage: If you need a different BOM for a specific purpose, you can create a new BOM with a different usage type. Ensure that the usage type is appropriate for your requirements.
  Delete or Archive Old BOMs: If the existing BOM is no longer needed, you may consider deleting or archiving it (if your business process allows for this) to free up the key for new entries.
  Consult Documentation: Review SAP documentation or your organization's guidelines on BOM management to ensure compliance with best practices.
  
  Related Information:
  
  Transaction Codes: 
  
  CS01: Create BOM
  CS02: Change BOM
  CS03: Display BOM
  CS11: Display BOM for a material
  
  
  BOM Types: Understand the different types of BOMs (e.g., production BOM, sales BOM, etc.) and their usages.
  SAP Notes: Check for any relevant SAP Notes that might address specific issues or enhancements related to BOM management.
  User Authorization: Ensure you have the necessary authorizations to create or modify BOMs in the system.
  
  By following these steps, you should be able to resolve the BOM557 error and manage your BOMs effectively in SAP.