diff --git a/src/slack-send.js b/src/slack-send.js
index 4ef5b26b..d662834f 100644
--- a/src/slack-send.js
+++ b/src/slack-send.js
@@ -83,13 +83,21 @@ module.exports = async function slackSend(core) {
             webResponse = await web.chat.postMessage({ channel: channelId.trim(), text: message, ...(payload || {}) });
           }
         }));
+        // TODO: I suppose if multiple channels are provided, the output here will return only one of the messages'
+        // data, not all of them...
+        if (webResponse && webResponse.ok) {
+          core.setOutput('ts', webResponse.ts);
+          // return the thread_ts if it exists, if not return the ts
+          const thread_ts = webResponse.thread_ts ? webResponse.thread_ts : webResponse.ts;
+          core.setOutput('thread_ts', thread_ts);
+          // return id of the channel from the response
+          core.setOutput('channel_id', webResponse.channel);
+        }
       } else {
         console.log('Missing slack-message or payload! Did not send a message via chat.postMessage with botToken', { channel: channelIds, text: message, ...(payload) });
         throw new Error('Missing message content, please input a valid payload or message to send. No Message has been send.');
       }
-    }
-
-    if (typeof webhookUrl !== 'undefined' && webhookUrl.length > 0) {
+    } else if (typeof webhookUrl !== 'undefined' && webhookUrl.length > 0) {
       if (!payload) {
         // No Payload was passed in
         console.log('no custom payload was passed in, using default payload that triggered the GitHub Action');
@@ -142,15 +150,6 @@ module.exports = async function slackSend(core) {
       }
     }
 
-    if (webResponse && webResponse.ok) {
-      core.setOutput('ts', webResponse.ts);
-      // return the thread_ts if it exists, if not return the ts
-      const thread_ts = webResponse.thread_ts ? webResponse.thread_ts : webResponse.ts;
-      core.setOutput('thread_ts', thread_ts);
-      // return id of the channel from the response
-      core.setOutput('channel_id', webResponse.channel);
-    }
-
     const time = (new Date()).toTimeString();
     core.setOutput('time', time);
   } catch (error) {
diff --git a/test/slack-send-test.js b/test/slack-send-test.js
index e47d8d51..a970231d 100644
--- a/test/slack-send-test.js
+++ b/test/slack-send-test.js
@@ -53,6 +53,18 @@ describe('slack-send', () => {
       process.env.SLACK_BOT_TOKEN = 'xoxb-xxxxx';
       delete process.env.SLACK_WEBHOOK_URL;
     });
+    describe('but also setting a webhook URL', () => {
+      const fakeWebhookURL = 'https://hooks.slack.com/somethingsomething';
+      beforeEach(() => {
+        process.env.SLACK_WEBHOOK_URL = fakeWebhookURL;
+      });
+      it('should not POST to the webhook URL if using bot token / providing channel-id', async () => {
+        fakeCore.getInput.withArgs('slack-message').returns('who let the dogs out?');
+        fakeCore.getInput.withArgs('channel-id').returns('C123456');
+        await slackSend(fakeCore);
+        assert(!AxiosMock.post.calledWith(fakeWebhookURL), 'Webhook URL should not be called');
+      });
+    });
     describe('happy path', () => {
       it('should send a message using the postMessage API', async () => {
         fakeCore.getInput.withArgs('slack-message').returns('who let the dogs out?');