How To Fix QP648 - You have not entered a distribution type for a quantitative character.

SAP Error Message - Details

• Message type: E = Error

• Message class: QP - Message IDs for function module group QPAA

• Message number: 648

• Message text: You have not entered a distribution type for a quantitative character.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message QP648 - You have not entered a distribution type for a quantitative character. ?

  The SAP error message QP648, which states "You have not entered a distribution type for a quantitative character," typically occurs in the context of Quality Management (QM) when working with inspection characteristics in the system. This error indicates that a required field for the distribution type of a quantitative characteristic has not been filled in.
  Cause:
  The error is caused by the absence of a distribution type for a quantitative characteristic in the inspection plan or inspection lot. Distribution types are essential for defining how the data for quantitative characteristics will be analyzed and reported. Without this information, the system cannot process the inspection results correctly.
  Solution:
  To resolve the error, follow these steps:
  
  
  Access the Inspection Plan:
  
  Go to the transaction code for managing inspection plans (e.g., QP01 for creating or QP02 for changing).
  
  
  
  Locate the Characteristic:
  
  Find the specific inspection plan and navigate to the quantitative characteristic that is causing the error.
  
  
  
  Enter Distribution Type:
  
  In the characteristic details, look for the field labeled "Distribution Type" or similar. This field may be located under the "Quantitative" section.
  Enter the appropriate distribution type. Common distribution types include Normal, Binomial, Poisson, etc., depending on the nature of the data and the analysis required.
  
  
  
  Save Changes:
  
  After entering the distribution type, save the changes to the inspection plan.
  
  
  
  Reprocess the Inspection Lot:
  
  If applicable, reprocess the inspection lot that was generating the error to see if the issue is resolved.
  
  
  
  Related Information:
  
  Inspection Characteristics: These are defined in the inspection plan and can be either qualitative or quantitative. Quantitative characteristics require specific statistical analysis, which is why a distribution type is necessary.
  Quality Management Module: Understanding the QM module in SAP can help in managing inspection plans, quality notifications, and other quality-related processes.
  Documentation: Refer to SAP Help documentation for more details on setting up inspection plans and characteristics, as well as the significance of distribution types in quality management.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or refer to SAP Notes for any known issues or patches related to this error message.