I have 30 tweets scheduled to go out tomorrow evening at the exact same time via Hootesuite. They are all the same tweet, but mention different users. Is that considered a duplicate tweet?
Ex:
“@user1 this is my tweet”
“@user2 this is my tweet”
etc.
Those will not be seen as duplicates, as they are not identical.
However, sending tweets in bulk with a similar format like that may trigger our automated spam systems. I cannot say whether this would happen in your case as there are many variables in play.