Hi Gary,
On your first question: here is an example of what I use. This is for a DFT-batch, that is delivered once every week and where I want to check whether a message (read: the file) has been received (in the last 2700 seconds)
Source count: all
Comparing: >= 2700
Duration: once
Time Window: * 30 21 * * 2
The Time Window says to check this alert every Tuesday at 21:30.
Why do you want to check on 25 hours?
Zuyderland Medisch Centrum; Heerlen/Sittard; The Netherlands