Add a custom banner message to your SharePoint Online modern sites. Allows a site owner to modify the text, font size, colors and height of the banner. Specify a start date to control when the banner ...

This repo contains an example app that uses checkout UI extensions to build a custom banner using JavaScript. For more information, and for a walkthrough of this code, review our tutorial: Build a ...

3. If you don't have a banner already, select Customize Channel. Or if you have a current banner, click into it and upload a new image, then skip to step six. 4. After the Customize Channel option ...