How To Fix QS121 - Enter a validity time period for the tolerance change

SAP Error Message - Details

• Message type: E = Error

• Message class: QS - QM: Master data

• Message number: 121

• Message text: Enter a validity time period for the tolerance change

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message QS121 - Enter a validity time period for the tolerance change ?

  The SAP error message QS121, which states "Enter a validity time period for the tolerance change," typically occurs in the context of Quality Management (QM) when you are trying to set or change tolerances for inspection characteristics in a quality plan or inspection lot.
  Cause:
  The error arises when you attempt to create or modify a tolerance change without specifying a validity period. In SAP QM, tolerances for inspection characteristics must have a defined time frame during which they are applicable. If this validity period is not provided, the system cannot process the change, leading to the QS121 error.
  Solution:
  To resolve the QS121 error, you need to ensure that you enter a validity time period for the tolerance change. Here are the steps to do this:
  
  
  Access the Tolerance Change Screen: Navigate to the area in SAP where you are trying to change the tolerances (e.g., in the Quality Management module).
  
  
  Enter Validity Period: When prompted for the tolerance change, make sure to fill in the fields for the validity period. This typically includes:
  
  Start Date: The date from which the new tolerance will be effective.
  End Date: The date until which the tolerance will be valid.
  
  
  
  Save Changes: After entering the validity period, save your changes. This should resolve the QS121 error.
  
  
  Related Information:
  
  Quality Management Module: Understanding how tolerances work in the context of inspection characteristics is crucial. Familiarize yourself with the relevant transactions and tables in SAP QM.
  Documentation: Refer to SAP Help documentation for detailed information on managing tolerances and inspection characteristics.
  User Permissions: Ensure that you have the necessary permissions to make changes to tolerances in the system.
  Consult with a QM Specialist: If you continue to face issues, it may be helpful to consult with a Quality Management specialist or your SAP support team for further assistance.
  
  By following these steps and ensuring that you provide the required validity period, you should be able to resolve the QS121 error effectively.