Domain vs tenant

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Posted on by Amantaj

Three companies with each one have there own domain but are migrated on one domain. Can we have 3 tenants for each company? So that each one can benefit the 80gb space + that for the essential license?

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Amantaj 5 on at

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RE: Domain vs tenant

Many thanks
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Inge M. Bruvik 32,748 Super User 2024 Season 1 on at

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RE: Domain vs tenant

If all your users are in the same Azure AD and all your companies use the same country specific localization and other apps then you should keep them in one tenant.

You will not get 80GB pr. company but it will still be cheaper and more efficient than to split them in different tenants.

The more users you have in the same tenant the more DB space you will get.

If your companies is in 3 different region / counties you should split them in tenants pr. country,
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TMNielsen 189 on at

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RE: Domain vs tenant

Hi Amantaj

Vi have similar situation and we have multiple tenants - one domain = one tenant, so the simple answer is yes, but you should be aware of some of the downsides. We are only in the beginning of this multiple tenant setup, so maybe we do not know all downsides yet, but I can at least mention a few.

There are no ekstra direct cost by having multiple tenants and you could say that you then for free get multiple sets of 80gb space. You probably only pay one licence per user, but that is also the cause of one of the major downsides.

Even if we are in the cloud you still have to spend time (money) on admin tasks and the admin work is the same for each tenant, so if you have 2 tenants the work is double of one tenant, if you have 3 tenants the work i triple and so on.

You probably only pay one licence per user, but then your users can only work in one tenant. This means that you can for example not have employees with access to more than one tenant. If you need that, then you must purchase multiple licences per user and then it will be a very expensive solution.

We have evaluated the up- and downsides and still we have decided to go for the multiple tenant setup. This is because we have only few people that need access to all tenants. For example an accountant doing daily accounting work in company A and supervising the accounting in company B. This accountant has a normal license in company A but only a free "External Accountant" license in company B. The External Accountant license has some limitation in how the accountant can work with company B and each tenant only have 3 "External accountant" licences.

So again, the simple anser is yes, you can have multiple tenants, but you should evaluate ups and downs in you context before you decide.

Kind regards

Thomas Madsen Nielsen