Recent Twitter Update Statement
"The use of any form of automation (including scheduling) to post identical or substantially similar content, or to perform actions such as Likes or Retweets, across many accounts that have authorized your app (whether or not you created or directly control those accounts) is not permitted."
Why Is Twitter Making the Change?
Due to the large amount of spam generated on Twitter, the platform decided to stop authorizing multi-publishing. In a recent announcement, Twitter stated that they will be changing their API to “limit the ability of users to perform coordinated actions across multiple accounts.“ Professionals who use third party tools to post on Twitter will no longer be able to “simultaneously post identical or substantially similar content to multiple accounts.” This is valid for every tool (including TweetDeck, Twitter's own Twitter management tool and all 3rd party social media management tools). Twitter added that “an alternative to posting identical content is retweeting content from one account to another”.
Every provider that relies on the Twitter API needs to be compliant with this policy change by March 23, 2018.