Add Exchange attributes to ActiveDirectory

%3CLINGO-SUB%20id%3D%22lingo-sub-388745%22%20slang%3D%22en-US%22%3EAdd%20Exchange%20attributes%20to%20ActiveDirectory%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-388745%22%20slang%3D%22en-US%22%3E%3CP%3EHello%2C%3C%2FP%3E%3CP%3EI%20would%20like%20to%20extend%20my%20Active%20Directory%20schema%20for%20Office%20365.%3C%2FP%3E%3CP%3EI%20need%20to%20modify%20the%20attribute%26nbsp%3BmsExchHideFromAddressLists%2C%20but%20I%20use%20my%20local%20AD%20to%20synchronize%20to%20Office%20365%20with%20AADConnect%2C%20and%20I%20never%20had%20Exchange%20on-premise%20server.%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EI%20found%20some%20discussions%20like%20this%20one%20%3A%26nbsp%3B%3CA%20href%3D%22https%3A%2F%2Fanswers.microsoft.com%2Fen-us%2Fmsoffice%2Fforum%2Fmsoffice_o365admin-mso_dirservices%2Fhow-can-i-add-this-msexchhidefromaddresslists%2F5043d1ce-b7eb-45f7-8848-c07245ad8e66%22%20target%3D%22_blank%22%20rel%3D%22noopener%20noreferrer%20noopener%20noreferrer%22%3Ehttps%3A%2F%2Fanswers.microsoft.com%2Fen-us%2Fmsoffice%2Fforum%2Fmsoffice_o365admin-mso_dirservices%2Fhow-can-i-add-this-msexchhidefromaddresslists%2F5043d1ce-b7eb-45f7-8848-c07245ad8e66%3C%2FA%3E%20or%20this%20one%20%3A%26nbsp%3B%3CA%20href%3D%22https%3A%2F%2Ftechcommunity.microsoft.com%2Ft5%2FOffice-365%2FAdding-Exchange-Attributes%2Fm-p%2F187420%23M12580%22%20target%3D%22_blank%22%3Ehttps%3A%2F%2Ftechcommunity.microsoft.com%2Ft5%2FOffice-365%2FAdding-Exchange-Attributes%2Fm-p%2F187420%23M12580%3C%2FA%3E.%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EBut%20I%20don't%20want%20to%20take%20any%20risks%20in%20doing%20so.%20What%20is%20the%20danger%20of%20doing%20this%3F%3C%2FP%3E%3CP%3EIs%20the%20update%20schema%20in%20AADConnect%20is%20long%3F%3C%2FP%3E%3CP%3EI'm%20a%20little%20bit%20afraid%20to%20extend%20my%20schema%20and%20that%20nothing%20work%20after%20that.%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-LABS%20id%3D%22lingo-labs-388745%22%20slang%3D%22en-US%22%3E%3CLINGO-LABEL%3EOffice%20365%3C%2FLINGO-LABEL%3E%3C%2FLINGO-LABS%3E%3CLINGO-SUB%20id%3D%22lingo-sub-393641%22%20slang%3D%22en-US%22%3ERe%3A%20Add%20Exchange%20attributes%20to%20ActiveDirectory%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-393641%22%20slang%3D%22en-US%22%3EId%20say%20from%201-10%20min%20depending%20on%20environment%3CBR%20%2F%3E%3CBR%20%2F%3EAdam%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-393640%22%20slang%3D%22en-US%22%3ERe%3A%20Add%20Exchange%20attributes%20to%20ActiveDirectory%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-393640%22%20slang%3D%22en-US%22%3E%3CP%3EDepends%20on%20your%20AD%20infrastructure%2C%20but%20usually%20it's%20very%20fast%2C%20minutes.%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-393638%22%20slang%3D%22en-US%22%3ERe%3A%20Add%20Exchange%20attributes%20to%20ActiveDirectory%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-393638%22%20slang%3D%22en-US%22%3E%3CP%3E%3CA%20href%3D%22https%3A%2F%2Ftechcommunity.microsoft.com%2Ft5%2Fuser%2Fviewprofilepage%2Fuser-id%2F58%22%20target%3D%22_blank%22%3E%40Vasil%20Michev%3C%2FA%3E%26nbsp%3Bthanks%20for%20this%20information.%20Do%20you%20know%20how%20long%20the%20schema%20update%20in%20AAD%20take%3F%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-389038%22%20slang%3D%22en-US%22%3ERe%3A%20Add%20Exchange%20attributes%20to%20ActiveDirectory%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-389038%22%20slang%3D%22en-US%22%3E%3CP%3EThere's%20always%20a%20risk%2C%20but%20using%20the%20Exchange%20setup%20to%20do%20this%20is%20painless%2C%20reliable%20and%20fast%2C%20so%20just%20go%20for%20it.%3C%2FP%3E%3C%2FLINGO-BODY%3E
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Occasional Contributor

Hello,

I would like to extend my Active Directory schema for Office 365.

I need to modify the attribute msExchHideFromAddressLists, but I use my local AD to synchronize to Office 365 with AADConnect, and I never had Exchange on-premise server.

 

I found some discussions like this one : https://answers.microsoft.com/en-us/msoffice/forum/msoffice_o365admin-mso_dirservices/how-can-i-add-... or this one : https://techcommunity.microsoft.com/t5/Office-365/Adding-Exchange-Attributes/m-p/187420#M12580.

 

But I don't want to take any risks in doing so. What is the danger of doing this?

Is the update schema in AADConnect is long?

I'm a little bit afraid to extend my schema and that nothing work after that.

4 Replies
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There's always a risk, but using the Exchange setup to do this is painless, reliable and fast, so just go for it.

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@Vasil Michev thanks for this information. Do you know how long the schema update in AAD take?

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Depends on your AD infrastructure, but usually it's very fast, minutes.

Id say from 1-10 min depending on environment

Adam