Multiple Posts to Social Networks

I apologize if this has been covered already. My search didn't produce any results.

I recently set up channels for joomla articles to post to facebook and twitter. When I publish an article, the post to the networks is great and is an excellent feature for our site. The problem I am having, is that I use tags for displaying certain articles in certain modules. These articles rotate out using the tags, so I will edit the tags in the articles and save the article and it will post again. Each time an article is saved, a new post to networks is generated. I would like it to only post on first publishing. How do I achieve that?

Alex,

sorry for the delay, i didn't receive a notice that you replied (don't think this forum auto-subscribes, subscribed now).

I am not using any other joomla extension, these are organic joomla articles, there are not duplicate articles, and I set it up using the sourcecoast docs. Last week, I opened about 6 published articles, changed the tag, and saved and each of these were published.

Now, I am pretty sure each of these was published BEFORE channels was set up, so it is possible that the channels system did not note these articles as previously posting to the networks so it was as if it was posting for the first time. Thoughts on this as the reason?

Works for me.
Resolved. ty.