Doing more with 140 characters with DM deep link




I am working on "Doing more with 140 characters".Was going through
the documentation and had a small question about Prefix
portion(@mention) suffix portion(URL).According to -
it's not very clear on how this is changing.

I have some questions regarding DM Deep link in tweets. According to
Documentation DM deep link should be added via the attachment_url
parameter, and any other links inside the text of the Tweet will be
included in the 140 chars.Which API is suitable for adding
attachment_url for deep links.

When used attachment_url parameter and extended_tweet in
statuses/update API shows belo error:

{ errors: [ { code: 44, message: 'attachment_url parameter is
invalid.' } ] }

Has twitter populated prefix(@mention) portion excluding 140
characters. @username is still counting in 140 characters itself.
Please help me in this.


This is a duplicate of this post.