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Unnie's avatar
Unnie
Iron Contributor
May 03, 2018
Solved

SharePoint Online Extranet Users limitation

I am trying to set up an extranet on SharePoint Online. I have around 50,000 external users who needs to be added as external users (Guest accounts) into our tenant. My tenant has around 3000 E3 lice...
SharePoint Online
  • Unnie's avatar
    Unnie
    Jun 04, 2018

    Got response from Microsoft. We can have unlimited number of external guest users thru SPO external sharing. The 1:5 limitation mentioned in Azure B2B collaboration does not apply in this case.

     

    See MS answer in the Github issue: https://github.com/MicrosoftDocs/azure-docs/issues/8564#issuecomment-444918954

jcgonzalezmartin's avatar
jcgonzalezmartin
MVP
May 03, 2018
Well, it seems that if you use Azure B2B you will need additional licenses...but if you add those external users directly to SPO, you won't need those additional licenses
  • Trevor Seward's avatar
    Trevor Seward
    MVP
    May 04, 2018
    Azure B2B does not require SPO licensing. Azure B2B is in effect the same as SPOs sharing functionality; SPO is just using an older methodology.

    You'll see that when you invite someone to an SPO resource, they're added to your tenant just like an Azure B2B user would be.
    • Unnie's avatar
      Unnie
      Iron Contributor
      May 07, 2018

      Thanks Trevor Seward

      "You'll see that when you invite someone to an SPO resource, they're added to your tenant just like an Azure B2B user would be"

      So, does Azure B2B licensing limit (5 guest accounts per licensed account ) regarding external collaboration apply to SharePoint Online?

       

      I want to add 50k external users to my tenant (3,000 E3 licenses) through SPO external sharing, so is there any licensing limits I should be considering?

      • Trevor Seward's avatar
        Trevor Seward
        MVP
        May 07, 2018
        Your best bet to get this answered officially is to contact your Microsoft TAM or partner who you purchased O365 licensing from.
  • Unnie's avatar
    Unnie
    Iron Contributor
    May 04, 2018

    What do others SharePoint experts follow? Should we even worry about number of external users added? Also, since site owners can add external users themselves it will be difficult to keep track of this.

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