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

IQ121 - Overview

• 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.

IQ121 - Details

• 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