curl --location --request GET 'https://open.weibanzhushou.com/open-api/group_msg/failed_eu_list?mission_id=3000315539&access_token='
{
"errcode": 0,
"errmsg": "ok",
"error_ext_ids": [],
"error_unionids": [
"omefmt7omrwSFoM2yCe3_4n5ub"
],
"mission_id": 3000315539
}