---
schema_version: "1"
id: 89f5a10e8edec6d09eab328be03c6dcdeef92dea5fd3d08f7e177d6dc34d7936
title: Edit the Schema or Named Credential
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/platform/264-0-0/external_services_edit_http_callout_service.md
canonical_url: https://help.salesforce.com/s/articleView?id=platform.external_services_edit_http_callout_service.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: c80be5c0c3051fda82bb99852ceb94897bf1e8ed95bd07d5035309bce3779d3d
description: To edit the details of an external service created by HTTP Callout, you can edit the schema directly, change the Description, or change the Named Credential.
products:
  - Salesforce Platform
  - Security
release: "264"
---
# Edit the Schema or Named Credential

To edit the details of an external service created by HTTP Callout, you can edit the schema directly, change the Description, or change the Named Credential.

### Required Editions

<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;">Available in: Lightning Experience</td></tr><tr class=""><td class="slds-cell-wrap" style="vertical-align:top;">Available in: <strong>Enterprise</strong>, <strong>Performance</strong>, <strong>Unlimited</strong>, and <strong>Developer</strong> Editions</td></tr></tbody></table>

1. From Setup in Lightning Experience, enter External Services in the Quick Find box, and select **External Services**.
2. Click the name of the external service that you want to edit.
3. Click the **Edit** button.
4. Optionally, change the **Description**, or change the Named Credential under **Select a Named Credential**.
    
    When you save your changes, the Creation source shown on the external service's detail page remains **HTTP Callout in Flow Builder**, and therefore, can be edited again using the declarative tools.
5. Optionally, use the JSON schema editor to edit the schema.
    
    If you change the schema and save it, the **Creation source** changes to **From API specification**. This external service's operation can no longer be edited using declarative tools, but is edited like any other external service.
6. Click **Save & Next**.
7. Select the operation(s) to include in this registration.
8. Click **Next**.
9. Review your edited action, and click **Finish**.