If you have made a joint application, you do not need to serve your spouse with any documents.
If you filed a sole application you are required to serve the application. You will need to arrange for the documents to be served on your spouse either by post or by hand.
Once the documents have been served on your spouse you will need to eFile the evidence of service documents with the Court.
See How do I serve a divorce? for a step-by-step guide.