How To Fix IQ121 - Specify either the equipment number or the serial number

SAP Error Message - Details

• Message type: E = Error

• Message class: IQ -

• Message number: 121

• Message text: Specify either the equipment number or the serial number

What causes this issue?

You have entered an equipment and a serial number as initial criteria.
However, the system can only use one of the criteria.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Cancel one of the entries.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IQ121 - Specify either the equipment number or the serial number ?

  The SAP error message IQ121, which states "Specify either the equipment number or the serial number," typically occurs in the context of equipment management or maintenance processes within SAP. This error indicates that the system requires either an equipment number or a serial number to proceed with a specific transaction or operation, but neither has been provided.
  Cause:
  
  Missing Input: The user did not enter either the equipment number or the serial number in the relevant field.
  Incorrect Transaction: The transaction being executed may require one of these identifiers, and the user may not be aware of this requirement.
  Data Entry Error: There may be a typographical error or oversight in entering the required information.
  Configuration Issues: In some cases, the system configuration may not be set up correctly to handle equipment or serial numbers.
  
  Solution:
  
  Enter Required Information: Ensure that either the equipment number or the serial number is entered in the appropriate field before executing the transaction.
  Check for Typos: Verify that the entered numbers are correct and do not contain any typographical errors.
  Review Transaction Requirements: Consult the documentation or help resources for the specific transaction to understand what information is required.
  System Configuration: If the issue persists, it may be necessary to check the system configuration or consult with an SAP administrator to ensure that the equipment and serial number functionalities are properly set up.
  User Training: If users frequently encounter this error, consider providing additional training on the importance of entering the correct identifiers in the system.
  
  Related Information:
  
  SAP Modules: This error is commonly encountered in modules related to Plant Maintenance (PM) and Materials Management (MM).
  Transaction Codes: The error may occur in various transaction codes that involve equipment management, such as IW31 (Create Maintenance Order), IW32 (Change Maintenance Order), or IQ01 (Create Equipment).
  Documentation: Refer to SAP Help documentation for detailed information on equipment and serial number management.
  Support: If the problem cannot be resolved through the above steps, consider reaching out to SAP support or your internal IT support team for further assistance.
  
  By ensuring that the required identifiers are provided and verifying the system's configuration, you can resolve the IQ121 error effectively.