我正在尝试使用NodeJS中的Microsoft Bot Framework向Teams Group Chat发送主动消息。
向团队频道或单个成员发送主动消息有效。但我正在努力实现同样的群聊。
这是我的代码：

postMessageToUser: async (text) => {        
        const audience = undefined;

        var convoParams = {
            isGroup: true,
            members: [
                {
                  id: '29:1iOfFpGevlFyx2SH9V0-KC0Xe4tBIZOSDLDK9a2ZMETtQdRUxQQ7qMBzHFC74VFD3__Vw1uJyzQr7QiBM7TXXXX',
                },
                {
                  id: '29:11lf7x9OmbdGw8aJGAuH3i7_PQYyM1hs6BDZpDo7Wac-n4VCCfLau0TNxvHbfy11dx8x2Sm5BX0dBxNSur_XXXX',
                },
                {
                  id: '29:1VSgyY9QkxAhwmtRNhYGxNvtg5HqvQFQP0Yq9wwop05OCJa_rkTRQGV2Rtq_sspay-1eLN3fuXgy0B0m6qcXXXX',
                }
              ],
            tenantId: "e3988cc8-cd1d-4332-b600-6908eedfXXXX",
            activity: MessageFactory.text(text)
        };

        await adapter.createConversationAsync(bot_config.MicrosoftAppId, "msteams", serviceUrlCache, audience, convoParams, async context => {
            console.log("ok we have context..");

            await context.sendActivity(MessageFactory.text(text));
        });
    },

但这似乎不起作用。API返回以下错误：

body: '{"error":{"code":"BadSyntax","message":"Incorrect conversation creation parameters"}}',

澄清一下，此群聊已存在。我不想创建新的群聊。