Solution : https://service.sap.com/sap/support/notes/1581535 (SAP Service marketplace login required)
Summary :
This SAP Note addresses the limitations in using class type 026 within IS Retail for standard classification functions. Class type 026 is specialized for IS Retail, including article classifications and hierarchy structures. Key points include prohibition in customizing class type 026 through transaction O1CL, and the inapplicability of class maintenance and classification transactions like CL02, CL20N for class type 026, which triggers specific error messages (CL 088 and CL 556). Moreover, BAPI functions related to classification cannot be employed for this class type. Users must limit themselves to the native functions provided within IS Retail for these operations.
Key words :
system issues error message cl 088, system issues error message cl 556, normal standard classification functions, material group hierarchies, class-specific overwriting, prerequisites class type 026, select class type 026, enter class type 026, classification system, provided functions
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