How to create an EWS item (Calendar event or Contact) in the Deleted Items folder in Outlook?

I was trying to recreate the item into Deleted Items folder, but nothing happened, I got these errors "ErrorCannotCreateCalendarItemInNonCalendarFolder" or "ErrorCannotCreateContactInNonContactFolder". How to overcome this?

I used the request to POST with the body

    "<?xml version=\"1.0\" encoding=\"utf-8\"?> "
    "<soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\" "
                   "xmlns:t=\"http://schemas.microsoft.com/exchange/services/2006/types\" >"
      "<soap:Header> "
        "<t:RequestServerVersion Version=\"Exchange2013\" /> "
        "<t:ExchangeImpersonation> "
          "<t:ConnectingSID> "
            "<t:PrincipalName>%MAIL_BOX%</t:PrincipalName> "     // <<------- MAIL_BOX ---- FILLED IN BY A TEMPLATE PARAM
          "</t:ConnectingSID> "
        "</t:ExchangeImpersonation> "
      "</soap:Header> "
      "<soap:Body> "
        "<CreateItem xmlns=\"http://schemas.microsoft.com/exchange/services/2006/messages\" "
                    "MessageDisposition=\"SaveOnly\" "
                    "SendMeetingInvitations=\"SendToNone\"> "
          "<SavedItemFolderId>"
            "<t:FolderId Id=\"%FOLDER_ID%\"/>"                             // <<------- FOLDER_ID ---- FILLED IN BY A TEMPLATE PARAM
          "</SavedItemFolderId>"
          "<Items>"
            "%ITEMS_CONTENT%"                                              // <<------- ITEMS_CONTENT ---- FILLED IN BY A TEMPLATE PARAM
          "</Items>"
        "</CreateItem>"
      "</soap:Body>"
    "</soap:Envelope>";

And got such the response:

<?xml version="1.0" encoding="utf-8"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
    <s:Header>
        <h:ServerVersionInfo MajorVersion="15" MinorVersion="20" MajorBuildNumber="1922" MinorBuildNumber="23" Version="V2018_01_08" xmlns:h="http://schemas.microsoft.com/exchange/services/2006/types" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" />
    </s:Header>
    <s:Body>
        <m:CreateItemResponse xmlns:m="http://schemas.microsoft.com/exchange/services/2006/messages" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types">
            <m:ResponseMessages>
                <m:CreateItemResponseMessage ResponseClass="Error">
                    <m:MessageText>Cannot create a calendar item in a non-calendar folder.</m:MessageText>
                    <m:ResponseCode>ErrorCannotCreateCalendarItemInNonCalendarFolder</m:ResponseCode>
                    <m:DescriptiveLinkKey>0</m:DescriptiveLinkKey>
                    <m:Items />
                </m:CreateItemResponseMessage>
            </m:ResponseMessages>
        </m:CreateItemResponse>
    </s:Body>
</s:Envelope>

Solution

Because the Deleted Items Folder class is IPF.Note EWS restricts you from creating items that are Calendar or Contacts in these types of folder hence the error message your receiving. A workaround is just create the Items in the normal Calendar or Contacts folder and then use the Move operation to move it after you have created it.