in the getMailboxUsageDetail api GET https://graph.microsoft.com/v1.0/reports/getMailboxUsageDetail(period='D7') in response we get Item Count so GetMailboxUsageDetail API includes which items? like emails for specific users ? or it contains calendar items, contacts, tasks as well?

It's the total number of mailbox items, regardless of their type. So messages, calendar invites, tasks, etc.

getMailboxUsageDetail graph api .

Naitik Jani 6

in the getMailboxUsageDetail api

GET https://graph.microsoft.com/v1.0/reports/getMailboxUsageDetail(period='D7')

in response we get

Item Count

so GetMailboxUsageDetail API includes which items?

like emails for specific users ? or it contains calendar items, contacts, tasks as well?

1 answer

Vasil Michev 95,666 Reputation points MVP

2024-04-23T16:26:33.5166667+00:00

It's the total number of mailbox items, regardless of their type. So messages, calendar invites, tasks, etc.
Please sign in to rate this answer.
Naitik Jani 6 Reputation points

2024-04-24T05:34:51.7066667+00:00

but i got mismatch in count for outlook in my outlook there is calender invites that is count of 1 , and all mail count is maximum nearby 110 count including DiscoveryHolds hidden folder but from this report i got count like 2078 even though i tried task apis to found that is that any task remain but no there is no tasks that raise this itemcount this much high.

can you please help me to find out related item count .so i can cross verify my data once before developing further.

Vasil Michev 95,666 Reputation points MVP

2024-04-24T06:27:33.86+00:00

What does Get-MailboxStatistics show for that mailbox?

Also, keep in mind that the report as not current/real-time, on the screenshot above you're seeing data as of April 21st. If items have been added/removed from the mailbox since, the count will differ.

Naitik Jani 6 Reputation points

2024-04-24T08:36:13.4+00:00

hello ,

actually i have added user for testing and for that user there is the fix data.so, that's sure that no data have been added /removed.

i think Get-MailboxStatistics used with powershell but i am using graph api for c#.

so still not able to get this diff. for itemcount

Vasil Michev 95,666 Reputation points MVP

2024-04-24T10:41:47.98+00:00

I'm asking you to check via Get-MailboxStatistics in order to verify the number of items reported for said mailbox. Not to use it for your solution.

Naitik Jani 6 Reputation points

2024-04-24T11:33:54.8833333+00:00

oh got it ! let me check

Naitik Jani 6 Reputation points

2024-04-24T12:15:42.56+00:00

here is the output

item count 2207 .

Naitik Jani 6 Reputation points

2024-04-24T12:17:45.7+00:00

almost near as we got in graph api.

Vasil Michev 95,666 Reputation points MVP

2024-04-24T13:56:49.3766667+00:00

So you have your answer then, the GetMailboxUsageDetail call is showing the correct count. Not sure how you got to the 110 number you mentioned previously, but obviously you missed some items.

Naitik Jani 6 Reputation points

2024-04-25T06:13:31.05+00:00

ok thanks for the information
Sign in to comment