How To Fix /PLMI/PPEENG156 - &1 between &2 and &3 causes recursion and is not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: /PLMI/PPEENG -

• Message number: 156

• Message text: &1 between &2 and &3 causes recursion and is not allowed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PLMI/PPEENG156 - &1 between &2 and &3 causes recursion and is not allowed ?

  The SAP error message /PLMI/PPEENG156 &1 between &2 and &3 causes recursion and is not allowed typically occurs in the context of SAP's Production Planning and Execution (PP/PE) module, particularly when dealing with planning scenarios that involve recursive relationships.
  Cause:
  This error indicates that there is a recursive dependency in the planning process. Specifically, it means that the system has detected a situation where a planning object (like a product or a resource) is indirectly referencing itself through a series of relationships. This can happen in various scenarios, such as:
  
  Bill of Materials (BOM): If a BOM is defined in such a way that it references itself directly or indirectly.
  Routing: If a routing step refers back to a previous step in a way that creates a loop.
  Planning Hierarchies: If there are circular dependencies in the planning hierarchy.
  
  Solution:
  To resolve this error, you will need to identify and eliminate the recursive relationships. Here are some steps you can take:
  
  
  Review BOMs and Routings:
  
  Check the BOMs and routings for the materials involved (indicated by &1, &2, and &3 in the error message).
  Ensure that there are no self-references or circular dependencies.
  
  
  
  Analyze Planning Objects:
  
  Use transaction codes like CS03 (Display BOM) or CA03 (Display Routing) to inspect the details of the relevant objects.
  Look for any indirect references that may lead back to the original object.
  
  
  
  Adjust Planning Parameters:
  
  If applicable, review the planning parameters and settings in the configuration to ensure they do not allow for recursive relationships.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific error message for additional guidance and best practices.
  
  
  
  Testing:
  
  After making changes, test the planning process again to ensure that the error no longer occurs.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or patches related to this error.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed.
  System Logs: Review system logs for any additional error messages or warnings that may provide context to the issue.
  
  If the problem persists after following these steps, it may be beneficial to consult with an SAP expert or your organization's SAP support team for further assistance.