Martin Machacek

@23W https://learn.microsoft.com/en-us/graph/query-parameters?view=graph-rest-1.0&tabs=http#encoding-query-parameters

The note about `$search` param, but applies also to `$filter`. Have you tried double encoded ampersand `"contains(title, '%2526')"`? Does it work for you.

Hi, the issue is that the `GetAsGetAllSitesGetResponseAsync` method returns the `GetAllSitesGetResponse` (from the `Microsoft.Graph.Sites.GetAllSites` namespace) instead of the `SiteCollectionResponse`. Change the type in the `PageIterator` ``` var pageIterator = PageIterator...

Could you check if you use `GetAllSitesGetResponse` from the `Microsoft.Graph.Sites.GetAllSites` namespace? Works fine on my side with the correct namespace.

The endpoint you have mentioned doesn't support application permissions. If you can provide the feedback here: https://feedbackportal.microsoft.com/feedback/forum/ebe2edae-97d1-ec11-a7b5-0022481f3c80 we can vote for it and there is a good chance that this...

@skyflyer I am not aware of any workaround or other API.

Hi @goddard82, the [endpoint](https://learn.microsoft.com/en-us/graph/api/authenticationmethodsroot-list-usermfasigninsummary?view=graph-rest-beta&tabs=http) is available only in `beta` version and you called `v1.0`. Change `https://graph.microsoft.com/v1.0/reports/authenticationMethods/userMfaSignInSummary` to `https://graph.microsoft.com/beta/reports/authenticationMethods/userMfaSignInSummary`

@goddard82 I have the same problem. It takes a really long time to get a response and then it throws a 500 Internal Server Error.

The Graph API [doc](https://learn.microsoft.com/graph/api/user-get?view=graph-rest-1.0&tabs=http#http-request) recommends to enclose the `userPrincipalName` with `$` in parentheses and single quotes, but it's not supported right now by SDK.