Where is the question @LearoTech 
I write it but don’t know why it’sn’t appear .
Here is the question again
i have a workflow where i use RSS Feed trigger node . it get the articles from medium then post it to social media . now if the poll time renewed and no new articles published will the old article published again ?
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I don’t think so…
It’s a “Trigger” so it should only trigger for new items…
You can test it with a low interval to be sure.
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ok thanks will try
With RSS feeds it might reuse the same item — I tried pulling from a YouTube RSS earlier and it grabbed the first video fine, but on the next run (with no new uploads), it just pulled the same post again.
So yeah, probably worth adding some logic to check if that URL or post was already processed. Maybe store the URLs in a table or simple list and skip if it’s already been done.
Am not sure what would happen if you remove poll time though, not tested yet. Be good to know 
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will try this solution thanks