SharePoint Document Issues

How to Edit JSON-Formatted SharePoint List Forms

Maira Mehtab Sep 27, 2026 869 views

Question details

The user needs to locate the correct menu to edit JSON-formatted SharePoint list forms, which may have moved or become hidden following a SharePoint update.

Product: Microsoft SharePoint
Device & OS: not provided
Scenario: Customizing the layout of a SharePoint list item form using JSON code.
Observed behavior: The traditional option for editing JSON-formatted list forms appears to be missing or relocated in the updated SharePoint interface.

Before you start

Ensure you have the necessary site owner or edit permissions to modify list layouts, and verify that you are working in the modern SharePoint list experience rather than the classic view.

Solution 1Recommended

Use the Configure Layout Option in Item Properties

Access the item details pane to find the modern layout configuration settings where JSON formatting can be applied.

In recent SharePoint updates, the option to apply JSON formatting to forms is accessed directly from an individual list item's property pane rather than the general list settings.

Open your SharePoint List

Navigate to your SharePoint site and open the list where you want to edit the form formatting.

Select a list item

Click on any existing item in the list to open the item details pane on the right side of the screen.

Access layout configuration

At the top right of the item details pane, click the 'Edit form' icon and select 'Configure layout' from the dropdown menu to view and edit your JSON code.

Option Unavailable: If the 'Configure layout' option is missing, consult Microsoft's official list form documentation or post your issue in Microsoft Q&A using SharePoint development tags, as administrative settings might be restricting custom scripts.

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Frequently Asked Questions

Why is the Configure layout option missing for my SharePoint list?

This usually occurs if you lack the appropriate permissions to customize the list, or if your organization's SharePoint administrator has disabled custom scripts and formatting options at the tenant level.

Can I edit JSON formatting in the classic SharePoint experience?

No, JSON form formatting is an exclusive feature of the modern SharePoint experience. If you are in the classic view, you will need to switch to the modern view to utilize JSON layout configurations.

What should I do if my JSON code doesn't apply correctly after saving?

Double-check your code for syntax errors, as SharePoint requires strictly valid JSON. You can use a free online JSON validator or refer to Microsoft's official GitHub repository for SharePoint list formatting examples.

Document & File Issues