---
schema_version: "1"
id: 2098ae6279cad4be37e2c9a7c5acc9cf800d0df55885c0c2e3878ca419f91732
title: Roll Back a Lambda Update
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/service/264-0-0/voice_pt_roll_back_lambdas.md
canonical_url: https://help.salesforce.com/s/articleView?id=service.voice_pt_roll_back_lambdas.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 53697c2082ed21d9bbd2a8739dea3f733a34032f4d18864d1d4ca542e21d24f0
description: Roll back Lambda changes made during a contact center upgrade with contact center versioning. Keep your custom Lambda modifications from being overridden during Salesforce Voice Lambda updates.
products:
  - Service Cloud
  - Digital Engagement
release: "264"
---
# Roll Back a Lambda Update

Roll back Lambda changes made during a contact center upgrade with contact center versioning. Keep your custom Lambda modifications from being overridden during Salesforce Voice Lambda updates.

### Required Editions

This article applies to:

- Salesforce Voice with Amazon Connect
- Salesforce Voice with Partner Telephony from Amazon Connect

<table class="slds-table slds-table_bordered slds-max-medium-table_stacked slds-m-bottom_small edition"><colgroup><col></colgroup><tbody><tr class=""><td class="slds-cell-wrap" style="vertical-align:top;"><a href="https://help.salesforce.com/s/articleView?id=service.voice_editions.htm&amp;release=264.0.0&amp;type=5" title="Learn about the user interfaces, editions, and add-ons that support Voice solutions by Salesforce.">View supported editions</a>.</td></tr></tbody></table>

1. In the AWS Management Console, go to the Lambda console.
2. Search for the Lambda that you want to roll back and click the function name.
3. Open the function’s Version tab.
4. To go back to a previous version of a Salesforce Voice Lambda, edit the Active Alias.
5. To edit the Lambda version, go to Lambda’s Code section, edit the Configuration, and publish your changes. To save your changes as the newest version, go to the Alias section and set your custom Lambda to Active.