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Onboard External GCCHigh or commercial User to commercial AD tenant

There are lot of conflicting information and articles but because I was able to achieve it, I posted an article on steps to be followed in order to grant commercial tenant user access to GCChigh tenant and vice-versa. 

  1. Add users as External User in Azure AD. If You are adding a GCC or GCChigh user, you need to follow step 11 before you start step 1.

https://itfreesupport.com/wp-content/uploads/2023/02/Picture12.png1. Access Poratl.azure.com, search Azure Active Directory > Users > New User > Invite External Userhttps://itfreesupport.com/wp-content/uploads/2023/02/Picture13.png2. Keep ‘Invite User’ option selected, and enter below details. Make sure location is selected as United States, Select Invitehttps://itfreesupport.com/wp-content/uploads/2023/02/Picture14.pnghttps://itfreesupport.com/wp-content/uploads/2023/02/Picture15.png3. Once the invited user receive below email. User need to select Accept Invitationhttps://itfreesupport.com/wp-content/uploads/2023/02/Picture16.png4. Accept the below message so tenant can access below informationhttps://itfreesupport.com/wp-content/uploads/2023/02/Picture17.png5. Select Next on below screen to add multi factor authentication for the account, then you can usehttps://itfreesupport.com/wp-content/uploads/2023/02/Picture18.pnghttps://itfreesupport.com/wp-content/uploads/2023/02/Picture19.png6. I selected ‘I want to set up a different Method’ and then selected phone, User can select App as well and proceed.https://itfreesupport.com/wp-content/uploads/2023/02/Picture20.png7. You should get a prompt as, Verifiedhttps://itfreesupport.com/wp-content/uploads/2023/02/Picture21.png8. Now if user is added successfully, he will be redirected to URL (My Apps (microsoft.com)https://itfreesupport.com/wp-content/uploads/2023/02/Picture22.pnghttps://itfreesupport.com/wp-content/uploads/2023/02/Picture23.png9. Normal users you will see Identity as ‘ExternalAzureAD’ but for GCCHIgh user you will see “ExternalAzureADGovernment”https://itfreesupport.com/wp-content/uploads/2023/02/Picture24.png10. If Projects or any other license is required, make sure you assign the license for same by going to Licenses > Assignments > Select the License and then select Savehttps://itfreesupport.com/wp-content/uploads/2023/02/Picture25.png

11. For GCCHigh, below tenant level setting is additionally needed before you follow step 1

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  • Once added, click on ‘Inherited from default’

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  • Select ‘Customize Settings’ for B2B collaboration > ‘Allow access’ under external users and group. Set ‘Allow access’ under Applications

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  • Select ‘Customize Settings’ for B2B Direct Connect > ‘Allow access’ under external users and group. Set ‘Allow access’ under Applications

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  • Under Microsoft cloud settings select ‘Microsoft Azure Government’

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  • Now from GCCHigh, go to Access Poratl.azure.com, search Azure Active Directory > ‘External Identities’ from left navigation > Add the GCCHigh tenant ID and then select Add at bottom.

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  • For GCCHigh we should leave ‘Inherited from default’

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  • Under Microsoft cloud settings select ‘Microsoft Azure Commercial’

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Reference : https://itfreesupport.com/2023/02/onboard-external-gcchigh-or-commercial-user-to-commercial-ad-tenant