two companies exchange in the same Tenant

%3CLINGO-SUB%20id%3D%22lingo-sub-188139%22%20slang%3D%22en-US%22%3Etwo%20companies%20exchange%20in%20the%20same%20Tenant%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-188139%22%20slang%3D%22en-US%22%3E%3CP%3Ello%20Experts%20%2C%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3Eour%20Company%20A.COM%20buy%20a%20new%20Company%20B.NET.there%20are%20no%20trust%20between%20the%20two%20domains.the%20Company%20A%20has%20a%20office%20365%20subscription%20(%20Tenant%20)%26nbsp%3B%20with%20Hybrid%20Exchange%202016%20.we%20have%20a%20request%20to%20styudy%20it%20is%20possible%20to%20migrate%20the%20Exchange%20of%20the%20Coimpany%20B%20to%20the%20Tenant%20of%20the%20company%20A%20.%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EMy%20Questions%20are%20%3A%3C%2FP%3E%3CP%3E1-is%20the%20trust%20is%20necessary%20for%20this%20case%20or%20not%20(%26nbsp%3B%20just%20open%20some%20Flows%20..)%20%3F%3C%2FP%3E%3CP%3E2-%26nbsp%3B%20if%20the%20migration%20is%20possible%20%2C%26nbsp%3B%20is%20there%20a%20way%20to%20delegate%20administration%20of%20the%20exchange%20online%20of%20the%20company%20B%20and%20the%20administrator%20for%20the%20company%20B%20can%20not%20make%20any%20changes%20for%20the%20company%20A%20ressources%20in%20O365%26nbsp%3B%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3ERegards%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-LABS%20id%3D%22lingo-labs-188139%22%20slang%3D%22en-US%22%3E%3CLINGO-LABEL%3E2016%3C%2FLINGO-LABEL%3E%3CLINGO-LABEL%3EExchange%20Online%3C%2FLINGO-LABEL%3E%3CLINGO-LABEL%3EHybrid%3C%2FLINGO-LABEL%3E%3CLINGO-LABEL%3EOffice%20365%3C%2FLINGO-LABEL%3E%3C%2FLINGO-LABS%3E%3CLINGO-SUB%20id%3D%22lingo-sub-197204%22%20slang%3D%22en-US%22%3ERe%3A%20two%20companies%20exchange%20in%20the%20same%20Tenant%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-197204%22%20slang%3D%22en-US%22%3E%3CP%3EWhat%20you%20can%20do%20is%20sync%20the%20users%20from%20both%20on-premise%20Active%20directories%20to%20AzureAD.%20When%20this%20is%20done%20you%20can%20use%20a%20minimal%20hybrid%20(if%20im%20right)%20to%20start%20migrating.%20Also%20check%20this%20technet%20article.%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3E%3CA%20href%3D%22https%3A%2F%2Ftechnet.microsoft.com%2Fen-us%2Flibrary%2Fjj873754(v%3Dexchg.150).aspx%22%20target%3D%22_blank%22%20rel%3D%22noopener%20noreferrer%20noopener%20noreferrer%22%3Ehttps%3A%2F%2Ftechnet.microsoft.com%2Fen-us%2Flibrary%2Fjj873754(v%3Dexchg.150).aspx%3C%2FA%3E%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-188906%22%20slang%3D%22en-US%22%3ERe%3A%20two%20companies%20exchange%20in%20the%20same%20Tenant%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-188906%22%20slang%3D%22en-US%22%3E%3CP%3EThe%20trust%20is%20only%20required%20if%20you%20want%20to%20use%20ADFS.%3C%2FP%3E%3CP%3EThe%20delegating%20is%20more%20difficult%20as%20you%20are%20going%20against%20the%20grain%20of%20the%20rbac%20model%3C%2FP%3E%3C%2FLINGO-BODY%3E
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Contributor

llo Experts ,

 

our Company A.COM buy a new Company B.NET.there are no trust between the two domains.the Company A has a office 365 subscription ( Tenant )  with Hybrid Exchange 2016 .we have a request to styudy it is possible to migrate the Exchange of the Coimpany B to the Tenant of the company A .

 

My Questions are :

1-is the trust is necessary for this case or not (  just open some Flows ..) ?

2-  if the migration is possible ,  is there a way to delegate administration of the exchange online of the company B and the administrator for the company B can not make any changes for the company A ressources in O365 

 

Regards

2 Replies
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The trust is only required if you want to use ADFS.

The delegating is more difficult as you are going against the grain of the rbac model

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What you can do is sync the users from both on-premise Active directories to AzureAD. When this is done you can use a minimal hybrid (if im right) to start migrating. Also check this technet article.

 

https://technet.microsoft.com/en-us/library/jj873754(v=exchg.150).aspx