Links show the flow of benefit contributions between objects. They are usually made from left to right, from the objects (before) to those they link to (after).  

Objects in SuccessMaps are linked in three ways:

1. Manually with drag to link

2. Using the Link Map Tool.  Useful if you want to link many objects at one time.

First show the Link menu on the map. 

Then double click on Link you can simply left-click on an object and then another to link them.

3. Using Linking Wizards which can be very helpful in online discussions to decide links from a list of options.