How To Fix /SAPAPO/CDPSOPT381 - SOS &1 for product &2 can't be used because it contains cycles

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/CDPSOPT -

• Message number: 381

• Message text: SOS &1 for product &2 can't be used because it contains cycles

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/CDPSOPT381 - SOS &1 for product &2 can't be used because it contains cycles ?

  The SAP error message /SAPAPO/CDPSOPT381 indicates that there is a cycle in the supply chain planning data for a specific product. This typically occurs in the context of Advanced Planning and Optimization (APO) when there are circular dependencies in the product's supply chain structure, such as in the bill of materials (BOM), production process, or in the planning hierarchy.
  Cause:
  
  Circular Dependencies: The most common cause of this error is that the product has a circular dependency in its planning data. For example, if Product A requires Product B, and Product B also requires Product A, this creates a cycle.
  Incorrect BOM or Recipe: If the bill of materials or recipe for a product is incorrectly defined, it can lead to cycles.
  Planning Hierarchy Issues: If the planning hierarchy is not set up correctly, it can also lead to cycles in the planning process.
  
  Solution:
  
  Review BOM and Recipes: Check the bill of materials and recipes for the product in question. Ensure that there are no circular references. If you find any, correct them by removing the circular dependency.
  Check Product Dependencies: Analyze the dependencies between products. Make sure that no product is dependent on another in a way that creates a cycle.
  Use the APO Tools: Utilize the APO tools to analyze the product structure and dependencies. Tools like the "Product View" or "BOM Display" can help identify cycles.
  Adjust Planning Hierarchy: If the issue is related to the planning hierarchy, review and adjust the hierarchy to eliminate cycles.
  Consult Documentation: Refer to SAP documentation or notes related to this error message for additional guidance and best practices.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like /SAPAPO/SDP94 (for planning book) or /SAPAPO/CDPSOPT (for optimization) to analyze the planning data.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or patches related to this error.
  Testing: After making changes, test the planning run again to ensure that the error has been resolved.
  
  By following these steps, you should be able to identify and resolve the issue causing the error message /SAPAPO/CDPSOPT381.