Just as long as you remember (A330), when you get to the point in your approach where your SOP has you setting a missed approach altitude (at the 1000 foot call on final for us), set the FIRST "at" or "at or below" constraint altitude in the procedure in the FCU. So if you have a complex missed approach procedure that says "cross XXXXX at or below 2000, then continue climb to 5000 direct YYYY", set 2000 in the FCU. Then you will be okay.