Diagnosis
In a group of selection fields, exactly one field must be set (have thevalue 'X').
If no selection field is set, the system sets the first field in thegroup by default.
If more than one field is set the transaction terminates. Thissituation has just occurred.

System Response
The transaction terminates.

Procedure
This is a program error.
The field &V1&
is set (this field contains the focus at the time of error), wherethere is already a field set in the same group of selection fields. Theprogram error is corrected by ensuring that always exactly one field isset in a selection field group.