Currently, the sync licenses allow for the creation of vaults, but there is no option to have a license that only allows joining an already created vault.
In our case, we don’t need to create many vaults, but rather have multiple users working on the same vault.
Currently, the license model for the sync feature comes at a significant cost for functionalities that, in our case, would be used only minimally.
The ideal solution would be for commercial licenses to at least allow users to join a vault in sync. Alternatively, you could consider offering a basic sync license that doesn’t allow vault creation but at least enables collaboration on existing ones.