need help syncing 2 iphones on 1 macbook with different contacts

[lr_drywall]

help... need help synicing 2 phones but have different contacts to sync to yahoo..ive tried many times but have been unsucessful...can some help

 

[dannyleeuk]

Will this work by syncing to different user profiles? i.e. Sync the 1st phone to Profile/User Account 1 and then Sync the 2nd phone to Profile/User Account 2?

I'm not entirely sure how iTunes works for profiles but it could be a start?