Applescript .app stopping Automator workflow

Question

Hi. I'm still a novice at Applescript, but getting better with Automator, and trying to combine the two to get the result I need, and I'm almost there except this one little glitch:
I've got an Automator workflow that involves an Applescript application (.app) which for some unknown reason halts the rest of the workflow despite it seemingly working right. The Applescript does little more than quit a specific application, which it does. But when I run the workflow from Automator I get the error: "Connection is Invalid"
Any help here would be greatly appreciated - is there something I should do differently with the script? Or should I handle this differently in Automator?
Thanks!
Below is the text of the script:
tell application "OmniOutliner"
tell every document
try
save
on error errormessage number errornumber
display dialog errormessage buttons {"OK"} default button 1
end try
end tell
end tell
quit application "OmniOutliner"

Answer 1

First,
'... is there something I should do differently with the script? ...' - Based only on the material provided - the AppleScript code (the 'save' line) assumes no 'Untitled' 'OmniOutliner' windows, otherwise the drop down 'Save' sheet will result with a 'Script Editor' error message of -> 'AppleScript Error. OmniOutliner Professional got an error: AppleEvent timed out.'. This error, or something similar, may be what is generating the 'Automator' 'Connection is Invalid' error message.
Try the code below, in place of your AppleScript source code - with any needed modifications (such as 'OmniOutliner' in place of 'OmniOutliner Professional').
-- Code starts here --
tell application "OmniOutliner Professional"
close (every document whose (name begins with "Untitled" and canUndo is false)) saving no -- Close any newly created documents, which have not been modified.
set {tDocuments, dNames} to {documents, name of documents} -- Create lists of opened documents and the documents titles (names).
repeat with i from 1 to (count tDocuments) -- Cycle through the tDocuments list.
if ((item i of dNames) contains "Untitled") then -- If a newly created document, and recently modified - then, save it with a date stamped name, to the 'Desktop'..
save (item i of tDocuments) in ((((path to desktop folder from user domain) as string) & (do shell script "date +%Y%m%d%H%M%SOmniOutliner.oo3")))
else if ((canUndo of (item i of tDocuments)) is true) then
save (item i of tDocuments) -- If a previously created document, and recently modified.
end if
end repeat
end tell
quit application "OmniOutliner Professional" -- Any opened but not modified documents, or any recently saved documents - will be closed here.
-- Code ends here --
Note: No detailed checking is provided, above, for files that contained 'Untitled' within the filenames, and were then opened in 'OmniOutliner Professional'; as opposed to, any newly created document - which will contain 'Untitled' as its name or the beginning of its name. Such is left as an exercise for the student.
Second,
'... should I handle this differently in Automator?' - Please provide the 'Automator' workflow Actions.