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Office 365 REST Mail API Error -- This operation exceeds the throttling budget for policy part 'LocalTime', policy value '0', Budget type: 'Ews'. Suggested backoff time 245622 ms. RRS feed

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  • There isn't much information on throttling for the REST API but from the errors your getting it looks like it sharing the EWS Policy so you can read more about throttling https://msdn.microsoft.com/en-us/library/office/jj945066(v=exchg.150).aspx . It basically means the user the application is running under is making too many requests (with a certain period of time) for you to get a backoff like that its must be quite excessive or are you accessing multiple mailboxes simultaneously ?. Most likely you will need to reduce the number of concurrent threads or requests to get your application to live with the throttling policy. Throttling policies aren't adjustable by Tennant admins but I believe you can appeal to support to increase your throttling limits with supporting evidence etc.

    Cheers
    Glen

    Friday, February 5, 2016 5:52 AM