Share address book from one to other tenants in O365

techno1795
Brass Contributor
Jan 29, 2019
Dear Admin.,

Thank for your advises.

From your link. I know that, I need share address book to external. But, O365 do not support share address book, to do that, we need have a tool from third-party.

How to do that, my customer, they want us provide a solution for that?, So can we share address-book in O365 at the moment.
Thank you so much.,
Lee Nguyen
- adam deltinger
  MVP
  Jan 29, 2019
  With that said, feel free to vote on the uservoice for sharing GAL between tenants! Quite a big one!
  
  https://office365.uservoice.com/forums/273493-office-365-admin/suggestions/10087845-gal-federation-between-different-o365-tenants
  
  Regards / Adam
  - techno1795
    Brass Contributor
    Jan 29, 2019
    Thank you Adam.,
    In this case.
    
    Can we create list of contact ( external ), end share to individual user in external ? , is this possible. ?
    
    Thank you so much !
    Lee Nguyen
- adam deltinger
  MVP
  Jan 29, 2019
  May I ask why your customer demands you to share your internal address lists! This is not normal! It’s ok if you for example merge 2 companies and needs this! Then you setup trusts, common sync etc but not with a customer!
  
  I would suggest them to create contacts in their tenant or use B2B:
  
  https://docs.microsoft.com/en-us/azure/active-directory/b2b/what-is-b2b
  
  Adam
  - Kevin_van_t_IJssel
    Copper Contributor
    Apr 05, 2022
    On this page, we've implemented B2B, but cannot seem to find any intel on how to share GAL's between our two tenants. We are splitting our organisation, so this is the reason, to easily share the e-mailaddresses between the two existing tenants.

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Share address book from one to other tenants in O365

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