How to use the RCS capability property in Klaviyo

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Updated Feb 24, 2026, 12:00 AM EST

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Prerequisite: To send RCS messages, your account needs an active RCS sender in the recipient’s country. The RCS capability property will only appear if your account has activated RCS. If RCS is not enabled for your account, this property will not be visible.

The RCS capability property in Klaviyo helps you understand which subscribers can receive RCS (Rich Communication Services) messages. You can view this information on an individual profile, use it to create targeted segments for campaigns, and apply it in flow splits.

With the RCS capability property, you can:

  • Check whether an individual profile is RCS-capable in their SMS marketing subscription details
  • Create segments based on subscribers’ RCS capability
  • Use splits in flows to choose different actions based on RCS capability

Viewing RCS capability on a profile

The first step in using the RCS capability property is knowing whether a subscriber can receive RCS.

Note: The Is RCS capable field only appears if the profile is actively subscribed to SMS marketing and your account has an active RCS sender in the country associated with the profile’s phone number.

Open a profile’s Text messaging marketing subscription details to view its RCS capability.

How to use the RCS capability property in Klaviyo - 图1

How to use the RCS capability property in Klaviyo - 图2

The metadata includes an Is RCS capable field, which will display True or False.

  • True means Klaviyo has identified the subscriber’s phone number as RCS-capable.
  • False means Klaviyo has identified the subscriber’s phone number as not RCS-capable. This includes phone numbers that cannot receive RCS and those for which a capability result is unavailable.

Creating an RCS segment

You can use Klaviyo’s segment builder to create a segment of subscribers who can receive RCS messages.

  1. Navigate to Audience > Lists & segments in your Klaviyo account.
  2. Select Create > Segment.
  3. Enter a descriptive name, such as RCS. If you are entering it in a Create segment dialog, click Create segment to continue to the builder.
  4. In the segment builder, select If someone can or cannot receive marketing and set the conditions as follows:
  5. Person can receive text message marketing
  6. because person Subscribed
  7. Add a filter within this condition: is rcs capable is True.
  8. Click Create segment to save the segment.

Your segment should look like this:

How to use the RCS capability property in Klaviyo - 图3

How to use the RCS capability property in Klaviyo - 图4

Creating a dedicated RCS segment lets you target contacts who have both opted in to SMS marketing and are marked as RCS-capable.

Creating an SMS segment

To create a segment of SMS subscribers who are not currently identified as RCS-capable, repeat the steps above with a new name, such as SMS, and set is RCS capable to False.

Select this segment as your campaign audience to target SMS subscribers whose RCS capability is False.

Using RCS capability in flows and campaigns

You can also use the RCS capability property in flow splits to choose different actions for subscribers based on whether they are marked as RCS-capable.

A split is optional. Where you have an active RCS sender, Klaviyo uses RCS for capable recipients and the SMS or MMS fallback for other recipients. A capability segment or split does not disable that fallback.

Set up a flow split

  1. In the flow builder, drag Split from Logic onto your flow, then select it. If your builder offers Conditional split, use that control instead.
  2. For Split, select Add path criteria on the first path. Set the same SMS consent and is RCS capable = True conditions used in the RCS segment above. For Conditional split, set these conditions directly in its configuration panel.
  3. If the path editor shows Apply, click it, then click Save in the split details. Otherwise, click Save.

For example:

  • On the path for subscribed profiles where is RCS capable is True, add your RCS message.
  • On Everyone else (or No in a conditional split), choose another action if you do not want to send those profiles the SMS fallback.

Example of a conditional split using RCS capability:

How to use the RCS capability property in Klaviyo - 图5

How to use the RCS capability property in Klaviyo - 图6

Use the segments in campaigns

For a single-message campaign, select the RCS or SMS segment as its audience. In an omnichannel campaign, you can use separate audience paths for these segments.

  1. On the omnichannel campaign canvas, click Select audience for a path.
  2. In Send to, select your RCS segment, then click Save and return.
  3. To target your SMS segment separately, click Add path and repeat these steps with that segment.

Then add and schedule the messages for each path. Learn more about creating an omnichannel campaign.

Additional Resources

Learn how to create and use segments in Klaviyo, which are a powerful tool for understanding your audience and sending targeted messages.

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