Resend Integration
Automatically sync contest entrants to your Resend audience. New contacts are added as entries are submitted.
Resend setup is lightweight: one API key plus one audience.
What You'll Need
Before connecting, make sure you have:
Resend API Key
Settings -> API Keys. Create a key that starts with re_.
One Audience
Create/select a Resend audience for contest subscribers.
Connecting to Your Promotion
Follow these steps in HPRS:
Open promotion in dashboard
Go to Post Capture
Open Resend Connection
Paste API key
Select audience
Click Connect Resend


Set it and forget it: After connection, new entrants are synced automatically.
What Gets Synced
Entrant email address
first_name
First name when provided
last_name
Last name when provided
Testing Your Integration
Quick validation flow:
Connect Resend to a test promotion
Submit a test entry
Open selected audience in Resend
Confirm new contact appears
Troubleshooting
API key invalid
Use a valid re_ key and reconnect.
Audience missing
Create audience in Resend, then re-validate key in HPRS.
Contact not added
Submit a fresh test entry after connecting.