It is probably because you have not been attached to the new team. Contact your administrator to get access to the new team.
teams AND DMS INTEGRATION
Important: In the teams with integration in Prepare, new teams are automatically created as soon as you have published for the new team in your document management system. You should therefore not create a new team in Prepare. You must therefore remember to be added to the team and get the rights as the agenda producer, to be able to publish agendas in the new team. As soon as you have the rights as the agenda producer, you will be able to see the new team under "Import" in Prepare.