I need a condition that checks 4 files to ensure they are updated on today's date.
However, I have no idea how to go about doing this.

Logic:
If FILES date = today's date THEN
Run Job
Else
Wait Until True
End If

I think there are several ways to do this. Personally I would first use the List files Task as that have a good filter (including date). That returns a list of all files.

I do not know what is your condition that all (a certain number) or that you want to process any file that matches the date condition?

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I used a List File Task to get a list of files with Modified Dates > yesterday. (see attached screenshot of Task test results)

Now, I need to have a Condition that essentially process this logic:

If 4 files found in the List Task, then run [Job X].
Else Wait Until True

How do I use the results of the List File Task in a condition?

The problem is that List files Task does currently not return any result Variables. I suggest adding such Feature requests.

You could probably workaround this by using the Variable Condition and check against this value:

{STRING(RowCount|{TASK(PrevTask,StdOut)})}

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