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Asked: 2020-09-13 08:58:34 +0800 CST

sharing calendar information exchange online

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We have several tenants setup in office 365 from various acquisitions. We wanted users to be able to see each others' calendars across tenants. We followed the docs on inter-tenant collaboration and organization relationships, and we then proceeded to add an organization relationship in powershell:

New-OrganizationRelationship -Name "domain_1" \
  -Domains "domain_1.com" \
  -FreeBusyAccessEnabled:$true \
  -FreeBusyAccessLevel limitedDetails

After doing that, we still were not able to see availability across the tenants in exchange. Are there any subsequent steps after creating the organization relationship that we missed?

Output of Get-MailboxFolderPermission:

RunspaceId             : f970****-****-****-****-************
Identity               : ******:\Calendar
FolderName             : Calendar
User                   : Default
AccessRights           : {AvailabilityOnly}
SharingPermissionFlags :
IsValid                : True
ObjectState            : New

Output of Get-SharingPolicy:

RunspaceId        : f970****-****-****-****-************
Domains           : {Anonymous:CalendarSharingFreeBusyReviewer, *:CalendarSharingFreeBusySimple}
Enabled           : True
Default           : True
AdminDisplayName  :
ExchangeVersion   : 0.10 (14.0.100.0)
Name              : Default Sharing Policy
DistinguishedName : CN=Default Sharing Policy,CN=Federation,CN=Configuration,***
Identity          : Default Sharing Policy
ObjectCategory    : *********01.PROD.OUTLOOK.COM/Configuration/Schema/ms-Exch-Sharing-Policy
ObjectClass       : {top, msExchSharingPolicy}
WhenChanged       : 2019-10-13 05:45:19 am
WhenCreated       : 2016-07-06 11:57:04 am
WhenChangedUTC    : 2019-10-13 10:45:19 am
WhenCreatedUTC    : 2016-07-06 04:57:04 pm
ExchangeObjectId  : 65db****-****-****-****-************
OrganizationId    : *********01.PROD.OUTLOOK.COM/Microsoft Exchange Hosted Organizations/***
Id                : Default Sharing Policy
Guid              : 65db****-****-****-****-************
OriginatingServer : SN***********01.NAMPR15A001.PROD.OUTLOOK.COM
IsValid           : True
ObjectState       : Changed
exchange powershell office365

1 Answers

  1. According to my research, you should configure Office 365 share free busy between tenant, in other words, you should configure organization relationships in all these several tenants. Steps for your reference: Configuring Office 365 share free busy between tenant

    In addition, Cross-tenant configurations do not support personal contacts for free/busy lookup. Contacts must be included in the global address list for free/busy lookup to work. Above is mentioned in the article.

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