I've added a withdraw button to the bottom of the survey using: But it doesn't link to the debrief page at the end of the study. Does anyone know how to do this?

If you have a URL for your debrief page, you could try specifying onclick in the code for your button, like this:

How do you link an exit button to debrief page at the end of the study?

How do you link an exit button to debrief page at the end of the study? | Experience Community