Hello, All!

I am DM'ing a campaign for five of my friends. One of my awesome friends bought a subscription. We are sharing his account (the one I am on currently). I was looking to create a campaign, and I was wondering how I would add players, if this is the DM account, but also being shared by players? Would each of them have to make an account to join, or would there be a way for me to invite them to the campaign while still only using this one account?

If we are all sharing this account, would I be able to set up restrictions for this campaign so that the private DM notes are only accessible after a password, or could anyone with access to this account read them?

I hope I was clear enough in my questions. If you need clarification please respond, because I don't know what I'm doing! 

Can I ask what tier subscription? Will you all be buying books on beyond for sharing?

Everyone in your group should make their own account. Only the one account you already have will need the master subscription for sharing.  When everyone has their own account, go to your own account and create a campaign. You can share this campaign to all your friends (there will be a link to send once it’s created) and you’ll be set as the DM for that campaign you created. No one else that joins, even the account with the subscription, can see the DM notes you make in the private section(There is a public note section for sharing information with everyone in the campaign!)  

Once the account that has the subscription joins, they can decide if they want to share their content with everyone (I think. It might be the DM that sets it).

Once the subscription account joins and has share enabled, have everyone create a character within the campaign and you can set the character to private (this prevents other players, not the DM, from seeing the character sheet and info).

I think that’s everything?

You can create a campaign and then add characters from your own account, but it makes a lot more sense, as Account_of_Holding said, to have each player create their own account (free accounts let users create up to 6 characters, and they can join any campaign they are invited to). If you do add players from the same account, the Private DM notes will be visible to everyone, as will each of the other characters, there is no way to block or disable that 'inside' an account so to speak.

I have added characters to my own campaign, because I have several young players who aren't on dndbeyond, so it is possible, but not ideal. Also, if you have a master tier account, you can share any source material you have bought here with any characters that have joined a campaign you invited them to. For example, if you've purchased the Player's Handbook and check the share content box in the campaign settings, the characters in that campaign have access to PH content like spells, etc. that are not in the SRD. This only works with the DM/campaign creater using a master tier account (all the 'player' accounts can be hero tier or free accounts).

Hope this helps.

The way that content sharing works is each person makes their own account. The DM creates a campaign and invites all of the players into it. Then the person that has the subscription (it does not need to be the DM) enables content sharing in that campaign (assuming that person has a master tier sub).

Then everyone has access to all of the books that person has when they go to the Game Rules and Sources menus as well as when they make characters in that campaign.