Mesh continuity at boundaries

Hello,

I'm starting with Comsol, and I have this question, that may sound really basic to many of you.

I have defined a contact pair between two parts of my geometry - an assembly. Now I would like to know whether there is an automatic way to fit the edges of the elements belonging to either sides of the bondary. Or do we have to work it by hand for each case ?

Thank you for your help !

Greets,

Astrid.