How To Fix QE159 - The number of classes is 0

QE159 - Overview

• Message type: E = Error

• Message class: QE - RM-QSS Fehlertexte zur Ergebniserfassung

• Message number: 159

• Message text: The number of classes is 0

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message 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