Verified answer

Hey!

You may have exceeded the limit on the number of add requests that can be sent during the course of a given hour or day. This limit was put in place to protect you and other users of Yahoo! Messenger from receiving add requests from spammers.

If you want to send another request to another user wait for few hours and try again. If the request still does not go through, please wait 24 hours and send the request again.

You can add up to 1,000 contacts to your Messenger List on a certain amount of time.

More info:

http://help.yahoo.com/kb/index?locale=en_US&page=c...

Good luck!

₮ ᗪᴀʀᴋɴᴇss ₮