SAP Message C$123 - No entry selected

Diagnosis
On the current screen, you can see a list of data records in a tablewhose individual entries can be selected. The function that you havejust triggered requires that at least one of these entries is selected.This, however, is not the case.

System Response
The system cannot carry out the desired function as it cannot determinethe data record to which the function is referring.

Procedure
Select one or more entries and carry out the function again.