How to get message id and change key after send a message?

[winds1983]

Version (e.g. 1.0, dev-master): dev-master
PHP version: php 7.3
Microsoft Exchange version: exchange 2016

Description of problem:
Cannot get message id and change key after send message, I want use these info to reply next time.

Example request:

protected function _sendMessage($messageId, $changeKey)
    {
        // Build the request.
        $request = new SendItemType();
        $request->SaveItemToFolder = true;
        $request->ItemIds = new NonEmptyArrayOfBaseItemIdsType();

        // Add the message to the request.
        $item = new ItemIdType();
        $item->Id = $messageId;
        $item->ChangeKey = $changeKey;
        $request->ItemIds->ItemId[] = $item;

        // Configure the folder to save the sent message to.
        $send_folder = new TargetFolderIdType();
        $send_folder->DistinguishedFolderId = new DistinguishedFolderIdType();
        $send_folder->DistinguishedFolderId->Id = DistinguishedFolderIdNameType::SENT;
        $request->SavedItemFolderId = $send_folder;

        $response = $this->client->SendItem($request);

        $result = [];

        // Iterate over the results, printing any error messages.
        $response_messages = $response->ResponseMessages->SendItemResponseMessage;
        foreach ($response_messages as $response_message) {
            // Make sure the request succeeded.
            if ($response_message->ResponseClass != ResponseClassType::SUCCESS) {
                $code = $response_message->ResponseCode;
                $message = $response_message->MessageText;

                $result['response'][] = [
                    'code' => $response_message->ResponseCode,
                    'message' => $response_message->MessageText,
                ];
                \Yii::error("Message failed to create with \"$code: $message\"\n");

                continue;
            }

            $result['items'][] = $response_message;
            \Yii::info("Message sent successfully.\n");
        }
        
        return $result;
    }

Example response:

array:1 [▼
  0 => jamesiarmes\PhpEws\Response\ItemInfoResponseMessageType {#207 ▼
    +Items: jamesiarmes\PhpEws\ArrayType\ArrayOfRealItemsType {#208 ▼
      +CalendarItem: []
      +Contact: []
      +DistributionList: []
      +Item: []
      +MeetingCancellation: []
      +MeetingMessage: []
      +MeetingRequest: []
      +MeetingResponse: []
      +Message: []
      +PostItem: []
      +Task: []
    }
    +DescriptiveLinkKey: 0
    +MessageText: "The specified object was not found in the store., The process failed to get the correct properties."
    +MessageXml: null
    +ResponseClass: "Error"
    +ResponseCode: "ErrorItemNotFound"
  }
]

Additional details:
I built a draft message, it can get the message id and change key, then use it to send message successfully. but can use this message id and change key to reply. and throw this error:

The specified object was not found in the store., The process failed to get the correct properties.

How to get message id and change key after send a message?

[winds1983]

@jamesiarmes Could you give me some solutions?