Message type: E = Error
Message class: QE - RM-QSS Fehlertexte zur Ergebniserfassung
Message number: 159
Message text: The number of classes is 0
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QE159
- The number of classes is 0 ?The SAP error message QE159, which states "The number of classes is 0," typically occurs in the context of Quality Management (QM) when you are trying to create or process a quality notification or inspection lot, and the system expects at least one class to be assigned but finds none.
Cause: Missing Class Assignment: The most common cause of this error is that the relevant class (e.g., a classification system for quality notifications or inspection lots) has not been assigned or is not available in the system.
Configuration Issues: There may be issues with the configuration of the classification system in SAP, such as missing or incorrectly set up class types. Master Data Issues: The master data for the material or the quality notification may not have the necessary classification data.
Solution: Check Class Assignment: Navigate to the relevant transaction (e.g., creating a quality notification or inspection lot). Ensure that the appropriate class is assigned to the object
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