Programatically syncing Yahoo contacts using CardDAV in Objective-c iOS

We are attempting to synchronise the contacts from Yahoo Contacts using CardDAV protocol. We are able to get proper server response for the first two requests but the third one fails with 401 error code (Authentication failure) even though we are giving the same user authentication credentials. Any suggestion to overcome this road block would be welcome.

1 Reply
  • Hi,

    Any updates on this.

    I am getting response like below: (FYI)

    < <xmlns:yahoo=>"http://www.yahooapis.com/v1/base.rng" <xml:lang=>"en-US"><< >>Unauthorized</< >>< >Invalid authentication headers. Please pass appropriate YT cookies or Authorization header</ ></ >


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