How to Request a LinkedIn Recommendation
Under the Decide Who You’ll Ask header, type the name of the person you want to request a Recommendation from into the Your Connections text field.
You can add the names of up to 200 people in this text field, and all will get a Recommendation request.
If you click the little blue In icon to the right of the text box, LinkedIn will open up a new window containing the list of your connections, which you can select by checking the checkbox next to someone’s name in the window.
As you start typing the name of the person, you should see that name pop up. Clicking the name adds it to the list of names visible in the Your Connections field. You can now type in another name if you would like to send this Recommendation request to more than one person.