Use parameters in WhatsApp templates

A parameter is a placeholder inside a template. When the message is sent, Voixt replaces it with real customer information — a name, an order number, an OTP, an appointment time.

This is what lets one approved template serve thousands of customers.

What a parameter looks like

A parameter is a number inside double curly brackets:

{{1}}

The number tells Voixt which value belongs in that position.

Template:

Hello {{1}},
Your order #{{2}} has been confirmed.
Expected delivery date: {{3}}.
Thank you for shopping with us.

What the customer receives:

Hello Rahul,
Your order #ORD12345 has been confirmed.
Expected delivery date: 15 July 2026.
Thank you for shopping with us.

Why use parameters

• Send personalized messages without creating a separate template per customer.
• Insert customer-specific details automatically.
• Eliminate manual typing errors.
• Reuse one approved template indefinitely.

Common uses: customer name, order ID, OTP or verification code, payment amount, appointment date and time, tracking number, company name, delivery address.

Add parameters to a template

1. Go to WhatsApp → Templates and click Create Template.
2. Enter the basic details — name, category, language, type.
3. Write your message text, placing parameters where customer-specific information belongs.
4. Number them in order, starting at {{1}}. Do not skip numbers.
5. Add a sample value for every parameter, so Meta can review the template in context.
6. Preview the rendered message.
7. Submit for approval.

Parameter rules

Rule	Correct	Incorrect
Use double curly brackets	{{1}}	{1}, (1), [1]
Start at number 1	{{1}}	{{2}} as the first parameter
Do not skip numbers	{{1}}, {{2}}, {{3}}	{{1}}, {{3}}, {{5}}
Wrap parameters in real sentences	Hello {{1}}, your OTP is {{2}}.	{{1}} {{2}}
Always supply sample values	{{1}} = Rahul Sharma	(empty)

warning

Meta rejects templates whose parameters are malformed, out of sequence, or missing sample values. A rejected template cannot be edited — you must create a new one.

Sample values

Sample values exist so Meta's reviewer can see what the finished message looks like. They are used only for review and are never sent to a customer.

Give realistic values. {{1}} = Rahul Sharma tells the reviewer far more than {{1}} = test.

Practical examples

Purpose	Template	Delivered as
Order confirmation	Hi {{1}}, order #{{2}} is confirmed.	Hi Priya, order #ORD9981 is confirmed.
OTP	{{1}} is your verification code.	448210 is your verification code.
Appointment	Hi {{1}}, your appointment is on {{2}} at {{3}}.	Hi Amit, your appointment is on 12 July at 4:30 PM.
Payment reminder	Hi {{1}}, ₹{{2}} is due on {{3}}.	Hi Neha, ₹1,499 is due on 20 July.

Common mistakes

• A message that is only parameters. {{1}} {{2}} reads as spam and will be rejected. Put the parameters inside a sentence.
• Skipping a number. Going {{1}} → {{3}} breaks the mapping.
• Single brackets. {1} is not a parameter; it is literal text.
• Empty sample values. Meta cannot review what it cannot see.
• A parameter at the very start of a Marketing template. Some reviewers treat this as a spam signal. Lead with a word or two first.

Best practices

• Use a parameter only where the value genuinely changes between customers. Static text belongs in the template.
• Keep the parameter count low; each one is another chance for a bad value to render badly.
• Sanity-check what happens when a value is missing — a blank name turns "Hello Rahul," into "Hello ,".
• Preview with the longest realistic value, not the shortest.

FAQ

How many parameters can one template have? Meta does not publish a hard cap, but templates with many parameters are reviewed more strictly. Keep it to what the message actually needs.

Can I use a parameter inside a button? Yes, in dynamic URL call-to-action buttons. Quick reply button labels must be static — see Quick reply buttons.

Can I reuse the same parameter number twice? Yes. {{1}} can appear more than once and receives the same value each time.

What if I send fewer values than the template expects? The send fails. Voixt reports the error rather than delivering a broken message.

Next steps

• Add quick reply buttons to collect one-tap responses.
• Send the template as a broadcast.