You can create WhatsApp campaigns using Factoreal’s journey builder. We will demonstrate how to build a WhatsApp campaign by creating a one-way WhatsApp notification journey for a specific group of contacts.
Prerequisite:
- You need to make sure your WhatsApp templates are ready and approved before you start sending WhatsApp notifications to your contacts. To create WhatsApp Templates, refer the How to Create a WhatsApp Template aarticle.
To send WhatsApp notifications, perform the following steps:
- Click Journeys.

- Click Create New Journey.

- Click Blank Journey Canvas.

- Enter a journey name and click Next.

- Click and drag the Audience block.

- For the Select Recurrence option, click NO.

- Select the audience(s) to whom you want to send the notification.

- Click Save.

- Drag and drop the WhatsApp Notification Block.

- Select Sender Number.

- Select Template.

- Select Body variables. We select First Name for this.

- Click Save.
- Connect the 2 blocks.
To send a follow-up notification after 2 hours, drag and drop a Wait Until block. 
- Select WhatsApp for the Until this Event happens field.

- Select When WhatsApp notification is clicked.

- Select Current Journey and click Close.

- Select the template.

- Select Time Period within which the link click should happen to be considered as an event.

- Click Save and connect this block with the WhatsApp Notification block.
- In the Success path, select the next WhatsApp notification using the same process as above.
- In the Failure block, drag and drop the Add Contacts to List block.

- Select the list you want to add the contacts to. Or you can create a new list.

- Click Save.
- Click Validate.

- Click Save.
- Click Activate Journey.

The WhatsApp campaign will run as you have defined it in the journey.