## Zoho Billing - Product, solutions, integrations, support, and resources Index Access the complete documentation index at: https://www.zoho.com/qa/billing/llms.txt Use this file to discover all available documentation pages before proceeding. [Back](./) # How do I send WhatsApp notifications for contact persons? Here’s how you send Whatsapp notifications for your contact persons: * Go to **Customers**. * Select the customer for whom you want to enable WhatsApp messaging. * Scroll down and click the **Gear** icon next to the contact person and select **Edit**. * Ensure that the customer’s phone number is right and begins with a proper country code. * Mark the option **WhatsApp** under _Communication Channels_. * Click **Save** and WhatsApp will be enabled for the contact person. * * *