Outlook Mail REST API: folder not found despite being in a message

Question

I try to get the list of folders of an Outlook account using the REST API.

Using the MailFolders endpoint, I only get a subset of the folders (for example I'm not getting the Inbox and the Sent Items folders).

If I list all the messages of the account and then for each message try to fetch the ParentFolderId, I get a 404 error for a bunch of them. I'm only able to get the same folders I got from the MailFolders endpoint.

Of course this works for all the other Office 365 accounts I have. And this account doesn't look different from the others.

It's not a matter of folders being renamed because I can see those folders in the Outlook UI.

Of course I correctly paginate the results when both fetching the folders or listing the messages. And again this works fine with all the other Outlook accounts.

I'm using the https://outlook.office.com/api/v2.0/me/MailFolders?%24top=50 endpoint.

Any insights?

Thanks,

Jeremy

Response:

HTTP/1.1 404 Not Found 

Cache-Control: private
Transfer-Encoding: chunked
Content-Type: application/json;odata.metadata=minimal;odata.streaming=true‌;IEEE754Compatible=f‌alse;charset=utf-8
Server: Microsoft-IIS/8.5
request-id: e98a3488-3441-474c-8cff-c905f8b9f299 
X-CalculatedFETarget: MWHPR1301CU001.internal.outlook.com
X-BackEndHttpStatus: 404
X-FEProxyInfo: MWHPR1301CA0012.NAMPRD13.PROD.OUTLOOK.COM
X-CalculatedBETarget: MWHPR16MB1661.namprd16.prod.outlook.com
X-BackEndHttpStatus: 404
OData-Version: 4.0
X-AspNet-Version: 4.0.30319
X-DiagInfo: MWHPR16MB1661
X-BEServer: MWHPR16MB1661
X-FEServer: MWHPR1301CA0012
X-Powered-By: ASP.NET
X-FEServer: BY2PR02CA0116
X-MSEdge-Ref: Ref A: 0872CED88164470BA7F119058A1F5CBF Ref B: BAYEDGE0318 Ref C: Thu Apr 27 10:58:51 2017 PST
Date: Thu, 27 Apr 2017 17:58:51 GMT

{
  "error":{
    "code":"ErrorItemNotFound",
    "message":"The specified object was not found in the store."
  }
}

Could you post response headers from one of these failed requests? — Jason Johnston
Body: {"error":{"code":"ErrorItemNotFound","message":"The specified object was not found in the store."}} — jboga
Headers: < HTTP/1.1 404 Not Found < Cache-Control: private < Transfer-Encoding: chunked < Content-Type: application/json;odata.metadata=minimal;odata.streaming=true;IEEE754Compatible=false;charset=utf-8 < Server: Microsoft-IIS/8.5 < Set-Cookie: exchangecookie=c7fc4cb01bfb41c884b7d6f219181e01; expires=Fri, 27-Apr-2018 17:58:51 GMT; path=/; HttpOnly < request-id: e98a3488-3441-474c-8cff-c905f8b9f299 — jboga
Headers++:< X-CalculatedFETarget: MWHPR1301CU001.internal.outlook.com < X-BackEndHttpStatus: 404 < X-FEProxyInfo: MWHPR1301CA0012.NAMPRD13.PROD.OUTLOOK.COM < X-CalculatedBETarget: MWHPR16MB1661.namprd16.prod.outlook.com < X-BackEndHttpStatus: 404 < OData-Version: 4.0 < X-AspNet-Version: 4.0.30319 < X-DiagInfo: MWHPR16MB1661 < X-BEServer: MWHPR16MB1661 < X-FEServer: MWHPR1301CA0012 < X-Powered-By: ASP.NET < X-FEServer: BY2PR02CA0116 < X-MSEdge-Ref: Ref A: 0872CED88164470BA7F119058A1F5CBF Ref B: BAYEDGE0318 Ref C: Thu Apr 27 10:58:51 2017 PST < Date: Thu, 27 Apr 2017 17:58:51 GMT — jboga

Aida Nowzari Aida Nowzari · Accepted Answer · 2017-04-27T17:55:32

I had the same issue. I resolved it by first getting a count of the folders and then made my second request with $top filter to get all my folders. Please see the following code:

$http.get("https://outlook.office.com/api/v2.0/me/MailFolders/$count")
         .then(function(response) {
            //RETRIEVE ALL FOLDERS
            $http.get("https://outlook.office.com/api/v2.0/me/MailFolders?$top="+response.data).then(...)

Outlook Mail REST API: folder not found despite being in a message

2 Answers