Exposed Fields in Modern UI Not Applying to Production Site But Works Locally

​@tharidhiPerera 

I reviewed the customization package and noticed that the Modern UI file contains a large portion of the standard screen markup in addition to the custom field definition.

Could you please clarify whether UsrMACFWarehouse / UsrMACFWarehouseBranch is a custom DAC extension field that you are trying to expose in Modern UI?

I am asking because the package appears to include a significant amount of base screen markup, which could potentially cause deployment issues or conflicts between environments.

Hi ​@SaiKrishnaV I am trying to expose UsrMACFWarehouseBranch only at the moment and not change any base screen layouts.

Thank you!

​@tharidhiPerera 

You should extend the existing screen HTML & ts files and add only your custom field(s).

Steps to Add a Custom Field in Modern UI

1. Open Customization Project.
2. Navigate to Screens → CS101500 → Modern UI Editor.
3. Click Add Field.
4. Select the required Data View and choose your custom field (e.g., UsrMACFWarehouseBranch).
5. Click Save to Extension.
   • This generates an extension file instead of modifying the base HTML.
6. If needed, use Edit TypeScript Extension for any custom UI logic.
7. Publish the customization..

For HTML code:

• Enable the Customized filter on the left panel. This will display only the customized fields/components.
• Select the custom field from the left panel and drag/move it to the desired location on the screen layout.
• Click Preview HTML Extension to verify that only the custom field extension code is generated.

I added the field through the Modern UI Editor and generated only the extension code. I have also shared the customization package for your reference.