Unfollowing is not "rate limited" by the API, but we have organic limits on
most write actions service-wide to prevent certain kinds of bursty behavior.
Best to back off from retrying requests when you get an error like this for
an exponentially increasing amount of time -- first 30 seconds, then a
minute, then a few minutes, then 10 minutes, etc.

@episod <http://twitter.com/episod> - Taylor Singletary


On Wed, Apr 6, 2011 at 8:31 AM, nischalshetty <nischalshett...@gmail.com>wrote:

> I am getting this for the Unfollow method. This shouldn't happen for
> the unfollow API. Can someone at twitter look into it?
>
> -N
>
> On Apr 6, 8:24 pm, nischalshetty <nischalshett...@gmail.com> wrote:
> > 420:Returned by the Search and Trends API when you are being rate
> > limited (http://dev.twitter.com/pages/rate-limiting).
> > Returned by the Streaming API:
> >  Too many login attempts in a short period of time.
> >  Running too many copies of the same application authenticating with
> > the same account name.
> >
> > I'm getting the above error. It's in large numbers. Can someone help?
>
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