Counting just at the Summary Task level Based on setting a value at the summary task level

[TroyS]

I have a task text enterprise outline code which is a list of values.
For certain Summary tasks, a particular will be selected from the list of
values in the Outline Code list.
For example, the summary task might be flagged as 'Authorized'; There are
other values in the list in addition to this 'Authorized' value.
The Summary Task will have subtasks below it representing detailed work
activities.

I want to count across all summary tasks that have been flagged as
'Authorized' and to total it at the top of the project

I've created a task number field formula where: IIF (Ent Task OC1 =
"Authorized",1,0).
If i apply the outline code at the detailed task name, the count of 1 shows.
If i apply the outline code at the summary task name, the count of 1 does
not show; it remains as 0.
I've tried summing options but i can't get this to work as planned.

In the 'task and group summary rows' section of the Number field, i don't
see an option to count only the Summary tasks. I see all types of other
counts and averages, but not at the Summary Task Only level.

Any ideas on how to make this work.??
I'm limited to the fact that i can't apply this value from the Outline Code
to the subtasks under the summary task. The summary task represents a "work
effort" and i don't/can't count the subtasks below it. I must set this
Outline Code value at the single summary task.

thx.

 

[JackD]

In the customize fields dialog box (the one where you select the field to
customize) make sure that the summary tasks are set to "Use Formula".