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Building a PowerApp to read a Outlook shared mailbox

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Posted on by RvdHeijden

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I'm trying to build a powerapp that reads an Outlook shared mailbox but im unsure on how to do so.

I've found a site which explains it a bit

How to read emails from shared mailbox in Exchange in PowerApps Canvas apps - Debajit's Power Apps & Dynamics 365 Blog

ClearCollect(
    colEmails,
    Office365Outlook.GetEmailsV3(
        {
            folderPath: "Inbox",
            top: 25,
            fetchOnlyUnread: false,
            includeAttachments:true,
            fetchOnlyFlagged:false,
            mailboxAddress:_supportMailboxAddress
        }
    ).value
);

But where do i place this code, is it in the Items property of a gallery ?

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Power Apps Pro Dev & ISV

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Daniel Bocklandt 5,151 Super User 2026 Season 1 on at

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Hey you can place it in a Button OnSelect property or OnStart of the App

Depends on how your app looks like.

In the Items Property you can put this:

colEmails

This Will only show something after you've clicked the button

If this solvede your porblem please accept it as solution so others can find it as well.
If it helped in any other way consider liking it so we can keep supporting eachother.

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RvdHeijden 602 on at

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@DBO, ive done the things u've said but it's not working so i'm missing something.

I've copied the formula in de OnStart attribute of the App and for the Gallery i've used colEmails but it's not getting any data.

I am also getting an error on the formula which is logical because the formula ends with an ; and that is not possible

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Daniel Bocklandt 5,151 Super User 2026 Season 1 on at

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Hey RvdHeijden,

The formula can end with a ";" thats not the issue.

Did you define your variable (_supportMailboxAddress) before you use the clearcollect?

If not it can't work.

Could you hover over the red underlined part and tell me what the errorcode is?

If this solvede your porblem please accept it as solution so others can find it as well.
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RvdHeijden 602 on at

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Hey @DBO DV,

This is the text i get when hovering over the redline

I haven't defined the variable _supportMailboxAddress because i'm not sure where i can do that (sorry)

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Daniel Bocklandt 5,151 Super User 2026 Season 1 on at

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Oh okay I get it.

It's a language issue. You see power platform formulas have slight differences regarding the language that you are using.

you should change it to this:

Set(_supportMailboxAddress;"HERE COMES THE ADRRESS OF YOUR SHARED MAILBOX");; ClearCollect( colEmails; Office365Outlook.GetEmailsV3( { folderPath: "Inbox"; top: 25; fetchOnlyUnread: false; includeAttachments:true; fetchOnlyFlagged:false; mailboxAddress:_supportMailboxAddress } ).value );;

If this solvede your porblem please accept it as solution so others can find it as well.
If it helped in any other way consider liking it so we can keep supporting eachother.

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Daniel Bocklandt 5,151 Super User 2026 Season 1 on at

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Hey @RvdHeijden,

Just wanted to check in.

Is your problem solved?

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RvdHeijden 602 on at

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The problem isn't solved yet, i didn't receive any solution unfortunately

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