diff --git a/index.js b/index.js
index 1e5f872..89e39e6 100644
--- a/index.js
+++ b/index.js
@@ -28,9 +28,9 @@ try {
         const channelId = core.getInput('channel-id');
         const web = new WebClient(botToken);
 
-        if (channelId.length > 0 && message.length > 0) {
+        if (channelId.length > 0 && (message.length > 0 || payload)) {
             // post message
-            web.chat.postMessage({ text: message, channel: channelId });
+            web.chat.postMessage({ channel: channelId, text: message, ...(payload ?? {}) });
         } else {
             console.log('missing either channel-id, slack-message or payload! Did not send a message via chat.postMessage with botToken');
         }