I trying to understand how content sharing works. Let's say I make 5 campaigns (which I think is the limit today) and I have master tier subscription. I invite 5 people to each of the 5 campaigns. Let's also assume that each person in each of the 5 campaigns has a book or adventure purchased, for a total of 25 pieces of content.

Do all 25 people have access to all 25 pieces of content? Or does each person have access to only the 5 pieces of content to the campaign they're in?

Sharing is by individual campaign. Also I think it's gone back to the default 3 campaign sharing limit, but I'm not positive about that at the moment.

Let's assume that that it has gone back to the 3, as that is beside the point now. The subscription page (https://www.dndbeyond.com/subscribe) still says 5.

Let's say this is the setup:

Campaign 1
 - Abigail - Owns PHB
 - Barry - Owns MM
 - Constaff (me) - Has Master Tier Subscription
 - Donald - Owns Xanathar
Campaign 2
 - Fred - Volos
 - Gretta - CoS
 - Harriet - SCAG

So, since I have the master tier subscription and created both campaigns, I'd have access to all 6 pieces of content but Fred would only have access to Volo, CoS, and SCAG? But if Fred, Gretta, Harriet, Donald, Barry and Abigail gave me their money and I bought those 6 books, then all players would have access to all 6?

So what I'm trying to determine is if it is beneficial for me to team up with 2 (or maybe 4 depending on how many campaigns we can actually make) other DMs. I'd pay for the Master Tier subscription and set up 3 (or 5) campaigns. I'd invite 2 (or 5) other DMs, each getting their own campaign. If each of us bought a few books and adventures, would we all have access to it or not?

Your statement indicates that it won't work. Is that right? For it to work, I think each of those DMs would need to trust me enough to send me the money to buy the books, and I don't think that is going to easily happen outside of my friend group.

If you are in a campaign with 5 other people and content sharing enabled, and each of you owns 1 book, then all 6 people can use all six books. It doesn’t matter who is the DM, who has the Subscription, or who has the books.

If you are in a second campaign and one person is the DM, a second person has a Subscription, a third person has 6 books, and the last three people have nothing, as long as the person with the subscription activates Content Sharing, then all 6 people in that campaign can use all 6 books.

The people from the first campaign will not benefit from the books owned by the person in the second campaign. The people in the second campaign will not benefit from the books owned by the people in the first campaign.

Does that make it clearer?

Awesome! Thanks DDB!

Does that make it clearer?

Yes, but what about instances where people have created campaigns with the intention to share their purchased content? I saw a while back that several people with the legendary bundle created a bunch of campaigns and allowed anyone to join. If a person with a lot of content also has the master tier subscription, are they able to share that content with more than one campaign at a time?

Here's what I'm trying to get to ultimately. I have maybe $200 I can spend on content and subscription service a year. I DM for 5 people. It is very clear to me that if I spent $150 on content and $50 for a master tier 1 year subscription, my players would be able to use the content I share with them. Any content my friends purchased could also be shared with the rest of our friend group. I was trying to understand if it would be beneficial for me to try and get 2 other random DM's/groups content owners to "team up" with. I would create a couple of campaigns and let them join those campaigns.

I think now that they (the other DM's content owners and any players they invite) would get the benefit of me sharing my content. But they wouldn't get the benefit of the content my friends in my campaign purchased. I think I would get the benefit of what the other groups purchased, but my players wouldn't be able to utilize that content directly.

I think the way around that is that instead of my friends purchasing content, they'd give me money and I'd purchase the content. The other DM's content owners would need to have the same structure with their players, so that the DM content owner essentially owns everything and it would require that their players trust those DMs people to not run away with their money/content. Then, each of the DM's content owners joins the other campaigns.

1. A campaign can only hold 12 players at a time.
2. A Master Tier Subscriber can only share content with a maximum of up to 5 campaigns simultaneously through the end of 2020, and then it reverts to the standard 3 campaign maximum.
3. Enabling content sharing on publicly advertised campaigns for the express purpose if circumventing DDB’s licensing contract with WotC is illegal, and simply advertising one’s intent to do so could get someone’s account revoked, and then they would loose their investment.

I hope that is helpful.