You can embed a Substack newsletter sign-up form to an page or content are in the Platform.
To do this, you will use the embed block when editing content.
Embed a form
To add a form to a content area, add a new Embed block by clicking the New Block button and selecting Embed.
Move the block that appears in the list to where you'd like it to display by clicking on the Move icon and dragging it to the right spot.
Once the block is in the right location, click the Pencil icon to edit it.
Copy you form code provided by Substack and paste it into the Embed Code field.
Click the Preview button to see the embedded form.
The form will appear where you pasted it in the content area.
- Learn more about content blocks: Guide: Content Blocks