Position cursor correctly

What causes this issue?

You chose "Select", but did not place the cursor properly.

System Response

You can select only for the following fields:

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

FI document number (with display of reconciliation postings)
The system displays the selected FI document.
Amount fields
The system reads and displays the CO documents for this amount. This can
take some time, depending on the number of documents.

How to fix this error?

Place the cursor on one of the fields given above, which include their
own hot spots.

Error message extract from SAP system. Copyright SAP SE.