For rich embedded messages, your webhook payload needs to match Discord’s embed structure. Put your content in an “embeds” array. Each embed can have properties like “title”, “description”, and “color” (as a decimal number). I ran into the same issues when I started - converting hex colors like #FF5733 to decimal (16729344) was key. Start simple with just a title and description to test your setup first, then add fields or custom styling later. Way easier to troubleshoot that way.