To reduce duplicate content displayed on your Wall, you can activate the option "Avoid duplicates" in the Sources settings of your wall:
With “Avoid duplicates” activated, we actually check for two things:
- On Twitter, we filter out retweets so they don't get shown multiple times
- On Twitter, we filter out posts that were created via Instagram's "share to Twitter"-feature
Important: There's currently no way to filter content that has been duplicated between other social media platforms than the ones mentioned – for example: a post that has been published on Facebook and Twitter using the same image and text, will still be displayed twice on your Wall!