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.