[BD-5452] Banners in Canvas Message step EA — MERGE 1/8

[lydia-xie]

Why are you making this change? (required)

Banners in Canvas Message step EA

Related PRs, issues, or features (optional)

• BD-5452

Feature release date (optional)

• January 7, 2026

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[mark-at-braze]

All of these look good. Assuming this is just part of the changes, though?

https://www.braze.com/docs/user_guide/message_building_by_channel/banners/creating_campaigns/#prerequisites

^ will need a canvas tab and probably some general renaming since its very campaign-focused right now

[mark-at-braze]

Updated one part, but otherwise LGTM.

I'll also update the title of this PR to reflect the one day slip from 1/7 to 1/8.

[Copilot]

Pull request overview

This pull request adds support for Banner messages in the Canvas Message step as an early access feature, scheduled for release on January 7, 2026. The changes unify the documentation for creating Banners across both campaigns and Canvases, and remove Canvas integration from the list of unsupported features.

Key changes:

• Enables Banner messages in Canvas Message steps (early access)
• Restructures the Banner creation documentation to cover both campaigns and Canvases
• Updates limitations list by removing Canvas integration restriction

Reviewed changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated 8 comments.

File	Description
assets/img/canvas_components/message_step2.png	Binary image file update showing new Banner option in Canvas Message step UI
_includes/banners/about.md	Updates terminology and removes Canvas integration from limitations list
_docs/_user_guide/message_building_by_channel/banners/creating_campaigns.md	Major restructuring to document Banner creation in both campaigns and Canvases with tabbed sections
_docs/_user_guide/engagement_tools/canvas/canvas_components/message_step.md	Adds Banners to the list of available messaging channels for Canvas Message step