How To Fix PPECMP601 - Material &1 in &2 creates recursion via bill of material

SAP Error Message - Details

• Message type: E = Error

• Message class: PPECMP - Messages for iPPE CMP Application (Components)

• Message number: 601

• Message text: Material &1 in &2 creates recursion via bill of material

What causes this issue?

Material &V1& of &V2& creates a recursion involving a bill of material.
The header material of this bill of material is &V3&, the component is
&V4&.
The entered material &V1& is part of a bill of material. If you add this
material to the product structure, the product structure becomes
recursive, as follows:
Either directly by an immediately-assigned other node and its material
reference or by a different material in the bill of material
Or indirectly by a different material that exists in the product
structure and likewise has to be part of a bill of material

System Response

The entered value (material nummer &V1&) is not saved in the changed
structure object.

How to fix this error?

Start the recursivity analysis with the specified materials (&V1&, &V3&,
and &V4&). The original error can also lie with other materials of the
product structure that exist in bills of material.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PPECMP601 - Material &1 in &2 creates recursion via bill of material ?

  The SAP error message PPECMP601 indicates that there is a recursion issue in the bill of materials (BOM) for a specific material. This typically occurs when a material is defined in its own BOM, either directly or indirectly, leading to a circular reference. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Direct Recursion: The material is listed in its own BOM. For example, if Material A includes itself in its BOM, it creates a direct recursion.
  Indirect Recursion: The material is part of another material's BOM, which in turn includes the original material. For instance, if Material A is in Material B's BOM, and Material B is in Material A's BOM, this creates an indirect recursion.
  Incorrect BOM Configuration: Errors in the BOM configuration or data entry can lead to unintended recursive relationships.
  
  Solution:
  
  
  Review BOM Structure:
  
  Go to the BOM for the material in question and check if it includes itself or if there is a circular reference with other materials.
  Use transaction codes like CS03 (Display BOM) to analyze the BOM structure.
  
  
  
  Correct the BOM:
  
  If you find that the material is incorrectly included in its own BOM, remove it from the BOM.
  If there are indirect references, identify the materials involved and adjust their BOMs to eliminate the recursion.
  
  
  
  Use BOM Explosion:
  
  You can use the BOM explosion functionality to visualize the structure and identify where the recursion occurs.
  
  
  
  Check for Changes:
  
  If changes were recently made to the BOM, review those changes to ensure they did not introduce recursion.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for guidance on BOM management and recursion issues.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  CS01: Create BOM
  CS02: Change BOM
  CS03: Display BOM
  CS11: Display BOM for a material
  CS12: Multi-level BOM display
  
  
  
  BOM Types: Understand the different types of BOMs (e.g., single-level, multi-level) and how they can affect material relationships.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to BOM recursion or provide patches and updates.
  
  
  Testing: After making changes, test the BOM explosion or related processes to ensure that the recursion issue is resolved.
  
  
  By following these steps, you should be able to identify and resolve the recursion issue indicated by the PPECMP601 error message in SAP.