Overview
Campaigns let you temporarily inject a banner image into employee email signatures to promote events, product launches, or offers. A campaign runs for a defined date range โ when it ends, the banner is automatically removed and the original signature is restored.

Creating a campaign
- 1Go to Campaigns โ New Campaign.
- 2Give the campaign a name and add a banner image (see Banner options below).
- 3Optionally add a Click URL โ when recipients click the banner in Gmail, they'll be sent to this URL.
- 4Set the targeting (who receives the campaign banner) and schedule (start and end dates).
- 5Click Create Campaign. If the start date is today or has passed, the campaign activates immediately.
Banner image options:
- Upload โ browse for a PNG, JPG, GIF, WebP, or SVG. Recommended size: 600ร120px.
- Design in Canva โ opens the Canva editor inline (requires Canva connected in Settings โ Integrations).
- Generate with AI โ describe the image and Gemini generates a banner automatically.
Targeting
Campaigns support three targeting modes โ you can combine them:
Individual users
Target specific employees by name or email.
Custom Groups
Target all members of one or more Custom Groups.
Assignments
Target all users covered by a specific signature assignment โ e.g. everyone in the /Sales OU.
Info
If no targeting is selected, the campaign applies to all users who have an active signature assignment.Scheduling
Set a Start date and optional End date. SignatureHQ runs the campaign activation job automatically:
- On start: banner is injected into all targeted users' signatures and deployed to Gmail
- On end: banner is removed and original signatures are redeployed
Warning
Campaign changes (editing an active campaign) trigger a redeployment to all affected users. Avoid editing active campaigns during peak hours.Analytics
Open a campaign and click the Analytics tab to see:
- Impressions โ number of times the campaign banner was displayed in a sent email (tracked via a 1ร1 pixel)
- Clicks โ number of times recipients clicked the banner (requires a Click URL)
- CTR โ click-through rate (clicks รท impressions)
- Daily trend chart โ impressions and clicks over the campaign period

Info
Tracking is privacy-preserving: IP addresses are SHA-256 hashed and never stored in plain text.