ActionBar removed on mobile: TitleBar primary action now renders as an icon button

Mobile primary action now renders as an icon in the title bar

On mobile, the primary and secondary actions defined on your TitleBar are changing how they render:

• The primary action now displays as an icon-only button in the mobile header, rather than in a bottom bar with icon and text.
• Secondary actions now appear in the overflow menu, creating a more consistent mobile interface.
• If you don't pass an icon property with your primary action, it defaults to a + (plus) icon.

Who's affected

All embedded apps that define a primary action or secondary actions on their TitleBar.

When the changes go into effect

Changes go live to all affected apps on April 15th, 2026.

What you should do

If the default + icon fits your use case, no changes are needed. Otherwise:

• Pass an explicit icon with the primary action on your TitleBar to ensure the most contextually appropriate icon displays on mobile.