You can only publish documents on 3DEXPERIENCEplatforms that are deployed on the cloud and you need to Cameo Collaborator documents only on a cloud-hosted 3DEXPERIENCE platform. Make sure you select the relevant check box when logging in:.
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Cameo Collaborator works only with projects stored on a cloud-hosted 3DEXPERIENCE platform. If you want to publish a local model, first add it to the 3DEXPERIENCE platform.