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How to survey customers after a Genesys Cloud callback.

Set Post-Flow does not cover the outbound leg of a callback, so the usual post call survey either never starts or runs too early, before the callback happens. The native fix is to set the post flow through the API while the call is still live.

In Genesys Cloud

The native way, step by step.

Step 1

Consider customer first callbacks. A Genesys moderator recommends them as good practice, so test how surveys behave with them first.

Step 2

For agent first callbacks, create a data action that calls the post flow action API for the customer's side of the conversation.

Step 3

Give the integration the permission conversation:call:setMandatoryPostFlowAction.

Step 4

Run the data action from a button in the agent script, early in the call, before the agent can disconnect. Some teams instead blind transfer to a flow that sets the post flow and then disconnects.

Step 5

Point the post flow at your voice survey flow and test it on real callbacks.

Worth knowing

Before you build it.

Timing

The post flow has to be set while the call is live. If the agent disconnects first, the customer is gone.

The agent decides

A script button means the agent chooses who gets surveyed. Track the share of callbacks each agent sends to the survey.

IDs

The API call needs the conversation, participant and communication IDs, so they must exist before the button is pressed.

Written by David Heneghan, co-founder of CX Index. Last reviewed 21 October 2026.

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Questions

Frequently asked questions.

Why does my Genesys Cloud survey not start after a callback?

Set Post-Flow is only available in inbound and in-queue flows, and common modules called from them. The outbound leg of a callback is not covered, so the post flow has to be set through the API while the call is live.

Can CX Index survey Genesys Cloud callbacks?

Yes. CX Index surveys callbacks the same way as inbound calls, with nothing for the agent to do.