您好,若获取群openConversationId ,步骤如下:
1、先拿下chatid(通过扫码的方式)。https://open-dev.dingtalk.com/apiExplorer?spm=ding_open_doc.document.0.0.4082722flqG3Ft#/jsapi?api=biz.chat.chooseConversationByCorpId
2、再拿下OpenConversationId。https://open-dev.dingtalk.com/apiExplorer#/?devType=org&api=im_1.0%23ChatIdToOpenConversationId