How To Fix 29602 - Change & from & to & not possible (BOM(s) exist)

SAP Error Message - Details

• Message type: E = Error

• Message class: 29 - Bills of Material

• Message number: 602

• Message text: Change & from & to & not possible (BOM(s) exist)

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 29602 - Change & from & to & not possible (BOM(s) exist) ?

  The SAP error message 29602, "Change & from & to & not possible (BOM(s) exist)," typically occurs when you are trying to change a material or a characteristic in a way that conflicts with existing Bill of Materials (BOM) entries. This error indicates that the system has detected that there are BOMs associated with the material you are trying to modify, and the change you are attempting is not allowed because it would affect those BOMs.
  Cause:
  
  Existing BOMs: The material you are trying to change has one or more BOMs associated with it, and the change you are attempting (e.g., changing the material type, status, or other attributes) is not compatible with the existing BOMs.
  Dependencies: The system enforces integrity rules to ensure that changes do not lead to inconsistencies in the BOM structure.
  Locked Objects: Sometimes, the objects may be locked due to ongoing processes or transactions.
  
  Solution:
  
  Review BOMs: Check the existing BOMs associated with the material. You can do this using transaction codes like CS03 (Display BOM) or CS02 (Change BOM) to see what BOMs are linked to the material.
  Modify BOMs: If the change you want to make is necessary, you may need to modify or delete the existing BOMs first. Ensure that any changes you make to the BOMs are in line with your business processes.
  Check Dependencies: Ensure that the changes you are trying to make do not violate any dependencies or constraints set by the BOMs.
  Consult Documentation: Refer to SAP documentation or your organization's guidelines on BOM management to understand the implications of the changes you are trying to make.
  Use Transaction Codes: If you need to make changes to the BOMs, use appropriate transaction codes (e.g., CS01 to create a BOM, CS02 to change a BOM, or CS03 to display a BOM).
  Seek Help: If you are unsure about the changes, consult with your SAP functional consultant or a colleague who has experience with BOM management.
  
  Related Information:
  
  BOM (Bill of Materials): A BOM is a comprehensive list of raw materials, components, and assemblies needed to manufacture a product. It is crucial for production planning and inventory management.
  Material Master: The material master contains all the information about a material that is required to manage it in the SAP system. Changes to the material master can affect various areas, including BOMs.
  Transaction Codes: Familiarize yourself with relevant transaction codes for BOM management, such as:
  
  CS01: Create BOM
  CS02: Change BOM
  CS03: Display BOM
  CS11: Display BOM for a material
  CS12: Display BOM for a group of materials
  
  
  
  By following these steps and understanding the context of the error, you should be able to resolve the issue effectively.