A class can hold a maximum number of 999 characteristics, however with the note " 1322174 - Warning message about no. of characteristics (900) in a class " being implemented, a warning will be displayed in case more than 900 characteristics are assigned to the class. Of course, even with the note implemented, the maximum number of characteristics that can be assigned is still 999. The warning message displayed when more than 900 characteristics are assigned to a class only notifies the user, but is not an error message.
It is however not possible to assign more than 999 characteristics to a class in standard SAP systems. Although the limit may be overwritten with custom coding and with the help of a consultant, it is strongly advised against doing so.
In case more than 999 characteristics will have to be assigned, the list of characteristics will have to be split up into smaller parts and be assigned to separate classes. The assignment of smaller number of characteristics to classes will not only benefit system performance but provides a structured hierarchy to enable simple search and maintenance of objects by users, which is eventually the goal of classification.
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