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Extended DAC Fields Not Visible After Converting Screen to Modern UI

  • February 12, 2026
  • 1 reply
  • 0 views

Hi Community Team,

I would like to report a gap observed during screen conversion from Classic UI to Modern UI.

When custom fields are created using a DAC Extension, those fields are correctly visible and functional in the Classic UI screen. However, after converting or working with the same screen in Modern UI, the extended DAC fields are not automatically included in the Modern UI layout.

Observed Behaviour:

  • DAC extension fields exist in the database.

  • They are properly configured and visible in Classic UI.

  • After switching to or converting the screen to Modern UI, the extended fields are not visible.

  • No automatic synchronization happens between Classic UI layout and Modern UI layout.

This creates confusion during conversion because developers expect the existing extended fields to be carried forward automatically.

Current Workaround:

To make the extended DAC fields visible in Modern UI:

  1. Open Customization Project Editor

  2. Open the specific screen

  3. Click on Modern UI Editor

  4. Click Add Field

  5. Select the appropriate Data View

  6. Select the corresponding DAC

  7. Select the extended DAC field(s)

  8. Click Save to Extension

  9. Click Save

  10. Publish the Customization Project

Only after completing these steps do the extended DAC fields appear in Modern UI.

1 reply

zherring
Freshman II
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  • Freshman II
  • February 12, 2026

As far as I know, what you just described is the only way to do it. Go screen by screen and manually put things back in. It was said at Summit that the conversion tool gets you most of the way there but would still need to do things manually.