How To Fix DO552 - > Cycle at level &

SAP Error Message - Details

• Message type: E = Error

• Message class: DO - Dictionary: Mass activation of domains and data elements

• Message number: 552

• Message text: > Cycle at level &

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DO552 - > Cycle at level & ?

  The SAP error message DO552, which indicates "Cycle at level &," typically occurs in the context of production planning and material requirements planning (MRP). This error suggests that there is a circular dependency in the bill of materials (BOM) or routing, which prevents the system from calculating the requirements correctly.
  Cause:
  
  Circular Dependency: The most common cause of this error is a circular reference in the BOM or routing. For example, if material A is dependent on material B, and material B is also dependent on material A, it creates a cycle that the system cannot resolve.
  Incorrect BOM Structure: If the BOM is not structured correctly, it can lead to cycles. This can happen if components are incorrectly defined or if there are multiple levels of BOMs that reference each other.
  Routing Issues: Similar to BOMs, if the routing has circular references, it can also trigger this error.
  
  Solution:
  
  Review BOM and Routing: Check the BOM and routing for the materials involved. Look for any circular references and correct them. Ensure that each component is only dependent on materials that do not create a cycle.
  Use the BOM and Routing Check Tools: SAP provides tools to check the integrity of BOMs and routings. Use transaction codes like CS03 (Display BOM) and CA03 (Display Routing) to analyze the structure.
  Adjust Dependencies: If you find circular dependencies, adjust the dependencies so that they are linear and do not reference each other in a cycle.
  Recreate BOM/Routing: In some cases, it may be easier to recreate the BOM or routing from scratch to ensure that there are no hidden cycles.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on structuring BOMs and routings to avoid cycles.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like CS01 (Create BOM), CS02 (Change BOM), CA01 (Create Routing), and CA02 (Change Routing) for managing BOMs and routings.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Training and Best Practices: Consider training sessions or best practice guides on BOM and routing management to prevent similar issues in the future.
  
  By addressing the circular dependencies and ensuring a proper structure in your BOMs and routings, you should be able to resolve the DO552 error effectively.