Merge pull request #3118 from segmentio/DOC-537-journeys-randomized-splits-addition

Add Randomized Split Content [DOC-537]

Author: pwseg

src/personas/journeys/build-journey.md

@@ -54,10 +54,25 @@ Define the number of branches you want to create, then add a **Wait for conditio
 > info ""
 > Journeys doesn't enforce mutual exclusivity in branch conditions. For more information about ensuring branch exclusivity, see [Best Practices](#).
 
-**Connect to existing step** joins two separate branches. Use this step to target multiple groups with one step. 
+**Connect to existing step** joins two separate branches. Use this step to target multiple groups with one step.
 
 **Send to Destinations** delivers information about the Journey to the selected Destination. For more information, see [Send data to Destinations](/docs/personas/journeys/send-data)
 
+## Publishing a Journey
+
+To publish and activate a Journey, click **Publish Journey** from the Journey Overview. You can also click **Publish Journey** in the bottom-right corner of the Journey Builder.
+
+> info ""
+> Some Journey features can only be edited before publication. For more information, see the difference between Draft and Published Journeys below.
+
+## Journey re-entry
+
+The Journeys re-entry setting allows users to repeat Journeys they've already exited. Common use cases for Journeys re-entry include the following:
+
+- Retargeting users who abandon multiple carts
+- Recurring rewards and promotion offers
+- Notifying users when to renew a subscription
+
 ## Cloning a Journey
 
 To clone a Journey:
@@ -68,20 +83,31 @@ Segment then creates a draft of your Journey.
 
 You can also clone a Journey from a Journey's Overview by clicking the **…** icon.
 
-## Publishing a Journey
-
-To publish and activate a Journey, click **Publish Journey** from the Journey Overview. You can also click **Publish Journey** in the bottom-right corner of the Journey Builder.
+## Randomized splits
 
 > info ""
-> Some Journey features can only be edited before publication. For more information, see the difference between Draft and Published Journeys below.
+> The randomized splits step is in beta and available to users with a Personas Advanced plan.
 
-## Journey re-entry
+A randomized split lets you experiment with and test the performance of a Journey's branches. When you create a randomized split, you add up to five Journey branches, each with a different step. Journeys then sends eligible users down one of the branches at random. Each branch receives a portion of the eligible users based on percentages that you assign to the branches.
 
-The Journeys re-entry setting allows users to repeat Journeys they've already exited. Common use cases for Journeys re-entry include the following:
+To test your messaging channels, for example, you might create a randomized split with three different branches, assigning 40% of users to an email campaign, 40% to an SMS campaign, and 20% to a control group. Once users flow through the split, you can determine the success of the email and SMS campaigns compared to each other and the control group.
 
-- Retargeting users who abandon multiple carts
-- Recurring rewards and promotion offers
-- Notifying users when to renew a subscription
+### Add a randomized split
+
+Follow these steps to add a randomized split to a Journey:
+
+1. Create a new Journey, and [add an entry condition](#adding-the-entry-condition).
+2. Select the **+** icon to add a step, then select **Create a randomized split**.
+3. Name the randomized split step, then add up to five branches.
+4. Set the distribution percentage for each branch, then select **Save**.
+5. For each branch in the split, select the child **+** icon and add a step.
+3. Save and publish your Journey.
+
+Users who meet the Journey's entry condition will then enter the Journey and flow through the randomized split.
+
+### Act on the split's results
+
+Once users complete your Journey's randomized split step, you'll have insight into how each split performed. You can take action on the results by cloning the Journey and sending a new set of users through the highest performing branch.
 
 ### Exit and re-entry times