title: Limit of call requests using Azure AD Graph API
body: <p>I'm currently working with Azure AD B2C authentication and I need to accomplish some tasks on users using the Azure AD Graph API (NOT MS Graph, as stated here: <a href="https://docs.microsoft.com/en-us/azure/active-directory-b2c/active-directory-b2c-devquickstarts-graph-dotnet" rel="nofollow noreferrer">official doc</a>).
  I know there are some throttling policies that may occur using the Azure AD Graph API, but I didn't found the true rate limit that I have to respect to avoid this side-effect. 
  <br/>
  <br/>Do you know the average number of request I can made to the endpoint to avoid this error? Is the limit evaluated per-application registered (Azure registered applications) or per-tenant?
  <br/>
  <br/>
  Do you know what is a typical amount of second I must attend before a retry when throttling policies are applied?</p>