# How to Send WhatsApp Broadcast
### Create a New Broadcast
After your template gets approved, go to the ***Broadcast*** page and add a new broadcast.
Step 1: Name the broadcast.
Step 2: Select the recipient list for the broadcast.
Step 3: Select the message template you want to broadcast.
Step 4: Determine whether to broadcast now or schedule a time for broadcast.
Step 5: Click "Submit" to broadcast when you are all done.
### Using Template Parameters in Broadcast
When your selected WhatsApp template includes parameters (e.g. `{{1}}`), you must assign values before sending the broadcast.
#### Body Parameters
If your template contains variables in the message body (e.g. `Hi {{1}}`), you will see a **BODY** parameter field.
**How to use:**
1. Locate the parameter field under **Template Parameters → BODY**.
2. Enter the value you want to replace the variable.
3. The preview on the right will update automatically.
**Example:**
* Template: `Hi {{1}}, check out our promotion`
* Input: `John`
* Final message: `Hi John, check out our promotion`
**Using contact data (dynamic values):**\
You can personalize messages by inserting custom fields:
* Format: `{{customFields.fieldName}}`
* Example: `{{customFields.firstName}}`
Each recipient will receive a message with their own data.
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#### Button Parameters (Dynamic URL)
If your template includes buttons (e.g. **Visit website**) with dynamic values, you must define the parameter for the button URL.
**How to use:**
1. Go to **Template Parameters → BUTTONS**.
2. Find the button (e.g. *Visit website*).
3. Enter the parameter value that will be appended to the URL.
**Example:**
* Base URL: `https://chatalog.ai/`
* Parameter input: `promo2026`
* Final URL: `https://chatalog.ai/promo2026`
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#### Important Notes
* All required parameters must be filled before submitting the broadcast.
* Parameters support both:
* Static text (same for all recipients)
* Dynamic variables (e.g. custom fields)
* Always check the preview to confirm the final message format.
