Forum Discussion
O365 external sharing
https://answers.microsoft.com/en-us/msoffice/forum/all/sharepoint-online-external-users-and-search/69d09fe7-9c65-4358-85d5-d97597c1102d?auth=1
Also regarding the collaboration tool, you should definitely look into Microsoft Teams! It’s part of the license and the purpose is what you describe you need!
https://products.office.com/en-us/microsoft-teams/group-chat-software
Adam
Thanks Adam.
I'm not yet that familiar with Teams and given the customer is not using it to this point, it would require a fair amount of training before being used effectively. It would however be an area to explore with customer to benefit from its integrated communication capabilities (chat, voice, video).
For this specific case I feel that collaboration is going to be more project focused so SPO should do fine.
I'm also not quite sure yet as to how granular security can be set in Teams vs Sharepoint site/apps/files
For testing purposes I did create a Team site but I can't add a guest account directly from within Teams even after having turned on guest access in O365 Teams Admin center (org wide settings). I was able to add the guest user from the admin center but the user is still not showing as a member in Teams site. Anything I miss ?