How to create rich RCS messages in Klaviyo

Klaviyo allows you to send rich RCS messages that include media and interactive elements via both campaigns and flows. These richer messages are designed to increase engagement and drive higher conversion rates.

Supported rich features

Rich Card

You can include 1 image and up to 4 buttons in an RCS card.

• Images and buttons work independently (you can use one without the other)
• Buttons currently support URLs only. Support for quick replies and other button actions will be added soon

Image guidelines:

• File types: JPEG, JPG, PNG, GIF
• Aspect ratio: 16:9
• Optimal resolution: 1440 × 720 px
• Maximum file size:
  • RCS: ≤2 MB
  • MMS fallback: ≤600 KB (recommended)
  • Klaviyo platform upload limit: 10 MB

Note: These image guidelines apply to standard RCS cards, where the image is shown at the top of the message.

Getting started

1. Log in to Klaviyo and create or edit a text message within a campaign or flow
2. Upload an image by selecting the Add image icon above the message text box
3. Add up to 4 buttons (each requires a label and a URL)
4. If you’re using the MMS fallback, ensure the image is ≤600 KB

Pricing

When you add an image or a button, the message is billed at the Single RCS rate across all geographies. For pricing, please contact our Sales team.

What’s next

We’ll continue expanding support for additional rich features, including:

• Suggestions chip list
• Full card support (with title and suggestions)
• Carousels
• Video support (in cards or as a standalone file)
• Audio file support (standalone file)
• PDF support (standalone file)
• Quick reply actions
• Additional actions (share calendar events, locations, contacts etc.)

Demo

RCS: Images & Buttons Demo