Hello there! To answer your question, it is certainly possible to create a channel in Commerce that is available to more than one legal entity. In fact, this can be a great way to streamline your operations and make it easier to manage multiple entities.
To create a channel that is available to multiple legal entities, you will need to set up the appropriate permissions and access controls. This can be done within the Commerce platform, and may involve creating user groups, roles, and other settings that determine who can access the channel and how it can be used.
It's important to note that creating a shared channel may require some additional planning and coordination between the different entities involved. You'll want to make sure that everyone is on the same page regarding how the channel will be used, who will be responsible for managing it, and how any revenues or expenses will be allocated.