Hello Paola and Welcome,
Supposing both application are Server ones and not Cloud. You can simply create a whole backup and export it in the new paid application.
Check Manually Backing Up the Site page to learn how to export / import your Confluence site.
👋 Hi there, a few of us at Atlassian would love to learn about how you use "space settings" functionality in Confluence. A facelift to the space settings is long overdue and we want to start with im...
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