Roster management across organizations

A computing device for generating a shared collaborative channel for collaboration, the computing device comprising:

• a processor;
• and
• a memory having a plurality of instructions stored thereon that, when executed by the processor, causes the computing device to:
• receive a request, from an originating member of an organization, to create the shared collaborative channel, the request including an invitee to be added to the shared collaborative channel;
• in response to receipt of the request, generate the shared collaborative channel within collaboration environment shared among members of a collaboration team within the originating organization, wherein the originating member is a member of a collaboration team within the originating organization, and wherein the invitee is a member of the same collaboration team within the originating organization, a different collaboration team within the originating organization, or a different external organization;
• provision a substrate group by creating a container associate with the shared collaborative channel including a substrate database associated with the shared collaborative channel, the substrate database including a membership roster of the shared collaborative channel;
• generate an invitation including a custom link to the shared collaborative channel for the invitee;
• determine whether the invitee belongs to an originating collaboration team associated with the originating member based on the substrate database;
• in response to a determination that the invitee belongs to the originating collaboration team, update the substrate group to add the invitee as a new member of the shared collaborative channel;
• and
• assign a set of rights to the invitee for accessing content of the shared collaborative channel based at least in part on which collaboration team and organization the invitee belongs to.

A non-transitory computer-readable medium storing instructions for generating a shared collaborative channel for collaboration, the instructions when executed by one or more processors of a computing device, cause the computing device to perform operations, comprising:

• receiving a request, from an originating member in an originating organization, to create the shared collaborative channel, the request including an invitee to be added to the shared collaborative channel;
• in response to receiving the request, generating the shared collaborative channel within collaboration environment shared among members of a collaboration team within the originating organization, wherein the originating member is a member of a collaboration team within the originating organization, and wherein the invitee is a member of the same collaboration team within the originating organization, a different collaboration team within the originating organization, or a different external organization;
• provisioning a substrate group by creating a container including a substrate database associated with the shared collaborative channel, the substrate database including a membership roster of the shared collaborative channel;
• generating an invitation including a custom link for accessing the shared collaborative channel by the invitee, the custom link indicating an identity of the invitee;
• based on the identity of the invitee, determining whether the invitee belongs to an originating organization based on an organizational database;
• in response to determining that the invitee belongs to the originating organization, updating the membership roster of the substrate database to add the invitee as a new member of the shared collaborative channel;
• and
• assigning a set of rights to the invitee for accessing content of the shared collaborative channel based at least in part on which collaboration team and organization the invitee belongs to,
• wherein the substrate group is associated with an independent identity management directory that includes a list of members that are authorized to access resources or content associated with the shared collaborative channel.