> ## Documentation Index
> Fetch the complete documentation index at: https://otpedge.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Dynamic parameters

\---\ntitle: "How to Use Dynamic Parameters in Templates"\ndescription: "Personalize your bulk messages with custom variables."\n---\n\nWhen creating a template, use double curly braces like `{{1}}` and `{{2}}`. When you trigger the campaign via OTP Edge API, you pass the values for these variables in the JSON payload under the `components` array. This allows one template to serve thousands of unique users.\n