Select one or more &

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

What causes this issue?

You want to execute a function. Functions can only be executed via the
menu if you select one or more objects first.

System Response

How to fix this error?

From the search result, select one or more objects for which you want
to execute the function, then execute the function via the menu.
You also have the option of executing functions by placing the cursor
on one object and executing the function using the pushbutton. You do
not need to select any objects if you do this.

Error message extract from SAP system. Copyright SAP SE.