What is the reason the Open Messaging API keeps rejecting my structured message payloads with a 400 error? i’m trying to push a quick reply card through a data action to a web messaging session, but the response is just a generic ‘Bad Request’ without much detail. the endpoint is POST /api/v2/conversations/messaging/messages. i’ve verified the webChatSessionId is fresh and valid, and simple text messages work fine. the issue seems to be specifically with the content object structure when using type: 'quick-reply'. here is the payload i’m sending from the data action output:
{
"to": {
"id": "webChatSessionId",
"type": "webchat"
},
"content": {
"type": "quick-reply",
"title": "Select an option",
"actions": [
{
"type": "button",
"label": "Option 1",
"value": "opt_1"
}
]
}
}
the docs say this structure is valid, but it’s failing every time. i’ve tried changing the type to card and actions to items, but no luck. the error body is just {"errors": [{"message": "Bad request"}]}. it’s driving me mad because the same payload works in the postman collection provided by Genesys, but fails when sent via the data action’s http request node.
i’m suspecting the data action is serializing the nested objects incorrectly or adding extra quotes, but the json output looks clean. has anyone hit this wall with the open messaging api? maybe there’s a specific header requirement i’m missing, or the sdk version in the data action runtime is outdated. i’ve checked the application/json content-type header is set correctly. the session is active, and the user is authenticated. i’m just stuck on why the structured content is being rejected while plain text slides right through. any hints on what the api is actually complaining about would be appreciated. the lack of detailed error messages makes debugging this a nightmare.