There is a simple trick to merging contacts in Apple's Address Book on OS X, without having to manually edit or copy and paste the Address Book data between contacts. Here are a few helpful tips.
Things You'll Need
- Mac OS X
- Address Book application
In an open "Finder" window, navigate to "Applications" on your Mac and double-click "Address Book" to open the application.
In the "Address Book" application contact list view, locate the two or more contacts that you wish to merge and perform a "shift-click" with your mouse and keyboard to select the multiple contacts you wish to merge.
In the "Address Book "menu bar, select "Card" and cursor down to "Merge Selected Cards" and release your mouse button. You can also use the keyboard combination "Command-|" (Shift + Backslash) to perform the merge function.
Know that the information in the multiple contacts will be merged into one contact file.