What response we will get while implementing create freindshp API, if following people limit exceeds as defined by ff ratio?

drupalopenid1 · 2013-10-17T11:55:58.000Z

What response should we expect from twitter while implementing create friendship API,if the user for which we are following people crosses the limit defined by ff ratio

episod · 2013-10-17T14:25:12.000Z

An HTTP 403 with code 161. When a user cannot follow another user due to any kind of user-based limits or allowances, the same error will be presented.

drupalopenid1 · 2013-10-17T15:40:11.000Z

Thanks @episod for the anwer
How we will figure out if 403 was because of ff ratio or simply because of any thing else?