"Prior notification" means giving someone information or advance notice before an event or action takes place. It ensures that the person is informed and aware of what will happen in the future. Full definition
In the context of a relocation application, the mother, who wished to relocate, obtained a Hear the Child report without prior notification of or consultation with the other parent. (hearthechild.ca)
All can all be arranged with prior notification and are easily available to arrange yourself on arrival. (gili-paradise.com)
Users will also be given prior notifications about the update. (goodereader.com)