diff --git a/post-message/action.yml b/post-message/action.yml
index 585e24a..a78ec3c 100644
--- a/post-message/action.yml
+++ b/post-message/action.yml
@@ -3,10 +3,16 @@ name: Post Chat Message
 inputs:
   api-key:
     required: true
+    description: API key to authenticate with the Roam API
   chat-id:
     required: true
-  text:
+    description: Chat ID of the Roam group the message will be sent to
+  blocks:
     required: true
+    description: Blocks Array of the message contents
+  colour:
+    required: true
+    description: Colour of the Roam notification banner
 runs:
   using: node20
   main: index.mjs
diff --git a/post-message/index.mjs b/post-message/index.mjs
index a9f0a59..7223a0a 100644
--- a/post-message/index.mjs
+++ b/post-message/index.mjs
@@ -3,12 +3,17 @@ import core from "@actions/core";
 try {
   const apiKey = core.getInput("api-key");
   const chatId = core.getInput("chat-id");
-  const text = core.getInput("text");
+  const color = core.getInput("colour");
+  const blocks = core.getInput("blocks");
+
+  console.log(blocks);
 
   const body = JSON.stringify({
     chat: chatId,
-    text,
+    color,
+    blocks: JSON.parse(blocks)
   });
+
   const response = await fetch("https://api.ro.am/v0/chat.post", {
     method: "POST",
     headers: {
@@ -17,12 +22,18 @@ try {
     },
     body,
   });
+
   if (!response.ok) {
-    throw new Error(`HTTP error! status: ${response.status}`);
+    const errorBody = await response.text();
+    core.error(`API request failed`);
+    core.error(`Status: ${response.status} ${response.statusText}`);
+    core.error(`Response body: ${errorBody}`);
+    throw new Error(`HTTP ${response.status}`);
   }
 
   const responseData = await response.json();
   console.log("Response:", responseData);
+
 } catch (error) {
   core.setFailed(error.message);
-}
+}
\ No newline at end of file