Timeline notes headline styling (bold / font size) – possible without PCF?

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Posted on by JK-19060742-0

Hi everyone,

I have a requirement regarding the Dynamics 365 timeline (Unified Interface).

As shown in the screenshot, we would like the first line of a note (the “headline”) to appear more prominent – ideally **bold and slightly larger**.

Is there any way to achieve this for both existing and newly created timeline entries using standard configuration or a workaround?

Or is building a custom PCF control the only viable option?

Most of our entries are system-generated, so manual formatting is not practical.

Thanks in advance!

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Dynamics 365 general

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Saif Ali Sabri 2,701 Moderator on at

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– Timeline Notes Headline Styling
In the Dynamics 365 Unified Interface, the Timeline control (used for Notes, Activities, Posts, etc.) does not currently expose direct configuration options for rich text formatting or font styling (such as bold or font size changes) within note content. The rendering of timeline items is handled by the standard control, and the text is displayed as plain text.
🧩 Available Options

Custom PCF Control

The most flexible approach is to build a custom PCF control that replaces or extends the default timeline rendering.

You can define custom HTML/CSS for the note body and apply conditional formatting (e.g., bold for the first line).

This allows consistent styling for both existing and new notes.

Custom HTML Web Resource

If full PCF development isn’t desired, you can embed a read-only HTML web resource that displays formatted note content using JavaScript and CSS.

This would require fetching note data via Web API and rendering it manually.

Server-side Formatting Logic

For system-generated notes, you could insert simple markup (like Markdown or HTML tags) into the note text when creating it via automation (Power Automate or plugin).

However, the timeline control will still render it as plain text unless replaced by a custom renderer.

⚙️ Not Possible via Standard Configuration

There is no out-of-the-box setting or form customization that changes font size or boldness in timeline notes.

The Timeline control does not support CSS overrides or formatting rules through the form editor.

💡Recommendation
If consistent visual emphasis is important (e.g., for system-generated notes), implementing a lightweight PCF control is the most maintainable and user-friendly solution. It ensures styling consistency without manual intervention.

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