To move a page from one space to another click on the three dots on the right side of the page, then click on the three dots on the pop up that will appear, then click on move
Tick on "Also delete child pages" only if you want to delete the pages that are inside the page you are deleting
Click on delete
Do not delete a page that has incoming links before you redirect the incoming links to another page or remove the incoming links so that they don't link to the page you want to delete.
