How To Fix 88851 - BOM component &1 is recursive; expansion is cancelled

SAP Error Message - Details

• Message type: E = Error

• Message class: 88 - REA Processing

• Message number: 851

• Message text: BOM component &1 is recursive; expansion is cancelled

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 88851 - BOM component &1 is recursive; expansion is cancelled ?

  The SAP error message "88851 BOM component &1 is recursive; expansion is cancelled" indicates that there is a recursive relationship in the Bill of Materials (BOM) structure. This means that a component in the BOM references itself directly or indirectly, leading to an infinite loop during the BOM explosion process.
  Cause:
  
  Self-Referencing Component: A component in the BOM is defined in such a way that it refers back to itself.
  Indirect Recursion: A component may reference another component that eventually leads back to the original component, creating a cycle.
  Incorrect BOM Configuration: Errors in the BOM configuration or data entry can lead to recursive relationships.
  
  Solution:
  
  Review BOM Structure: Check the BOM for the component mentioned in the error message. Look for any self-references or indirect references that create a loop.
  Correct the BOM: If you find a recursive reference, modify the BOM to eliminate the recursion. This may involve:
  
  Removing the self-referencing component.
  Adjusting the structure to ensure that components do not lead back to themselves.
  
  
  Use BOM Transaction Codes: Utilize transaction codes like CS03 (Display BOM) or CS02 (Change BOM) to analyze and modify the BOM structure.
  Check for Changes: If the BOM was recently modified, review the changes to identify any unintended recursive relationships.
  Testing: After making changes, test the BOM explosion process again to ensure that the error no longer occurs.
  
  Related Information:
  
  BOM Structure: Understanding how BOMs are structured in SAP is crucial. Each component should have a clear hierarchy without circular references.
  SAP Notes: Check SAP Notes for any known issues or patches related to BOM processing that might address this error.
  Documentation: Refer to SAP documentation on BOM management for best practices in structuring BOMs to avoid recursion.
  Consult with Colleagues: If you're unsure about the changes, consult with colleagues or a SAP expert who has experience with BOM configurations.
  
  By following these steps, you should be able to resolve the recursive BOM component error and ensure that your BOMs are correctly structured.