SAP Knowledge Base Article - Preview

1881558 - Not able to set the 'recursivity allowed' flag when creating a recursive class hierarchy structure involving a BOM item


When you try to assign a subclass to the superior class in transaction CL24N error message CL 550 'Class type &: class & causes BOMs to be recursive' occurs. Alternatively when you try to assign a material to a class in transaction MM02 the same error occurs. There is no possibility to allow the creation of recursive structures in these transactions.



  • SAP ERP Logistics Bill-of-Material (LO-MD-BOM)  
  • SAP R/3
  • SAP R/3 Enterprise
  • SAP ERP Central Component
  • SAP Enhancement package for SAP ERP


SAP ERP Central Component all versions ; SAP R/3 Enterprise all versions ; SAP R/3 all versions ; SAP enhancement package for SAP ERP all versions


CL(550), CL550, Rekursivität, erlaubt, Stückliste, Klasse, Klassenhierarchie, Oberklasse, Unterklasse, übergeordnet, untergeorndet , KBA , LO-MD-BOM , Bills of Material , CA-CL , Classification , Problem

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