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Create meeting with makeEwsRequestAsync having on behalf of functionality in Outlook add-in (for Windows) RRS feed

  • Question

  • We are trying to create a meeting from an Outlook web add-in using makeEwsRequestAsync with on behalf of functionality. The request works great on Outlook for Mac, but on Outlook for Windows it returns this error message: "Office extension have no permissions to access any other mailboxes then the mailbox provided in the user context."

    I have added permissions to the delegated person from Outlook and also as admin user from office.com.

    Is there something we need to configure?

    The request we used is the following:

    <?xml version="1.0" encoding="UTF-8"?>
    <v:Envelope
            xmlns:v="http://schemas.xmlsoap.org/soap/envelope/" xmlns:c="http://schemas.xmlsoap.org/soap/encoding/"
            xmlns:d="http://www.w3.org/2001/XMLSchema" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
        <v:Header>
            <n0:RequestServerVersion xmlns:n0="http://schemas.microsoft.com/exchange/services/2006/types"
                                     Version="Exchange2010_SP1"/>
        </v:Header>
        <v:Body>
            <CreateItem xmlns="http://schemas.microsoft.com/exchange/services/2006/messages"
                        SendMeetingInvitations="SendToAllAndSaveCopy">
                <SavedItemFolderId>
                    <n1:DistinguishedFolderId xmlns:n1="http://schemas.microsoft.com/exchange/services/2006/types"
                                              Id="calendar">
                        <n1:Mailbox>
                            <n1:EmailAddress>Sarah@onmicrosoft.com</n1:EmailAddress>
                        </n1:Mailbox>
                    </n1:DistinguishedFolderId>
                </SavedItemFolderId>
                <Items>
                    <n2:CalendarItem xmlns:n2="http://schemas.microsoft.com/exchange/services/2006/types">
                        <n2:Subject>Quick Meeting</n2:Subject>
                        <n2:Body BodyType="HTML">&lt;html&gt;&lt;body&gt;Booked with Outlook add-in. &lt;/body&gt;&lt;/html&gt;
                        </n2:Body>
                        <n2:ReminderIsSet>true</n2:ReminderIsSet>
                        <n2:ReminderMinutesBeforeStart>15
                        </n2:ReminderMinutesBeforeStart>
                        <n2:Start>2019-01-11T12:30:00.000Z</n2:Start>
                        <n2:End>2019-01-11T13:00:00.000Z
                        </n2:End>
                        <n2:IsAllDayEvent>false</n2:IsAllDayEvent>
                        <n2:LegacyFreeBusyStatus>Busy
                        </n2:LegacyFreeBusyStatus>
                        <n2:Location></n2:Location>
                        <n2:RequiredAttendees></n2:RequiredAttendees>
                    </n2:CalendarItem>
                </Items>
            </CreateItem>
        </v:Body>
    </v:Envelope>
    



    Tuesday, January 15, 2019 9:48 AM