Want to Use WhastApp API?

WhatsApp Campaigns: Dynamic Variables and Post-Send Actions

Picture of Mumble Team

Mumble Team

October 8, 2026| זמן קריאה: 2 דקות

In short: When you send a campaign, you fill the template’s variables, choose actions to apply to every recipient, and decide whether a chatbot handles the replies. Variables personalize each message. Actions tag and route recipients automatically.

Fill the variables

If the template has variables such as {{1}} and {{2}}, the form shows a field for each one. Fill each field in one of two ways:

  • Fixed text: everyone gets the same value, such as a coupon code.
  • Dynamic variable: pick a customer field, such as first name, email or a custom field. Mumble fills it for each recipient.

Example: {{1}} = first name, {{2}} = BLACK40. Dana gets “Hi Dana, your coupon is BLACK40”.

  • You can’t add variables here. They come from the template, so a new variable means a new template.
  • If a customer’s field is empty, the value is empty too (“Hi , your coupon…”). Check the list before a big send.
  • Values can’t contain line breaks, tabs or more than 4 spaces in a row. Meta rejects these messages.

Choose post-send actions

In the Actions section, choose what happens to every recipient when the campaign is sent:

  • Add to a list: for example “Got Black Friday”. Use it to exclude these customers from the next campaign.
  • Change status: so the chats appear under the right filter in the Inbox.
  • Assign to an agent or team: replies go straight to the right person.

Actions apply when the message is sent, whether or not the customer replies.

Regular campaign or campaign bot

  • Regular campaign: replies go to the Inbox and agents handle them. Good for updates, reminders and greetings.
  • Campaign bot: choose Send as campaign bot and pick a chatbot. The bot answers each reply. Good for registrations, questionnaires and lead qualification. See Campaign Bot.

Every delivered template is billed by Meta by its category. See Paying Meta and WhatsApp Messaging Costs.

Common questions

The variable fields don’t appear

The template has no variables. To add some, create a new template and wait for approval.

Some messages went out without a name

Those customers have no value in the field you chose. Use full name instead, or write the template so it reads well without a name.

Some recipients failed with error 131049

Meta limits how many marketing messages one person gets from all businesses. Don’t resend right away, try again later.

Will a customer in two lists get the message twice?

No. Mumble combines the lists and sends once per customer.

Related articles

Picture of Mumble Team

Mumble Team

מאמבל מתמחה בשינוי תקשורת עסקית באמצעות פתרונות וואטסאפ חדשניים. עם התמקדות באופטימיזציה של מכירות, ניהול לידים ואוטומציה של אירוסי לקוחות, Mumble מעצים עסקים לצמוח בצורה חכמה ומהירה יותר. עם תשוקה ליעילות וחדשנות, הצוות ממשיך להגדיר מחדש איך חברות מתחברות עם הלקוחות שלהן.