Resend

Sync GrowSurf participants and referral data to a Resend Segment.

Sync participants to a Resend Segment

Step 1: In Resend > API Keys, create a new API key with Full Access (this permission is required so GrowSurf can read Segments and manage Contacts and Contact Properties).

Step 2: In GrowSurf, open Program Editor > 4. Options > Integrations > Resend. Enter the API key, then connect your account.

Connect Resend with a Full access API key.

Step 3: Select the Resend Segment that should receive GrowSurf participants, then save your changes. GrowSurf creates the Contact Properties listed below and starts syncing new and updated participants.

Select the Resend Segment that should receive participant data.

Connect Resend before importing participants. If participants are already in your Program, follow these ESP sync options to send their GrowSurf data to Resend.

Contact Properties

GrowSurf creates these account-level Contact Properties in Resend. Use them in Broadcasts with Resend's {{{contact.property_name}}} syntax.

Contact Property	Property key	Type	Description	Example
GrowSurf Share URL	grsf_share_url	String	The participant's unique referral link	https://growsurf.com?grsf=abc123
GrowSurf Participant ID	grsf_participant_id	String	The participant's GrowSurf ID	abc123
GrowSurf Referral Status	grsf_referral_status	String	The participant's referral-credit status	CREDIT_PENDING
GrowSurf Participant First Name	grsf_participant_first_name	String	The participant's first name	Bob
GrowSurf Participant Last Name	grsf_participant_last_name	String	The participant's last name	Loblaw
GrowSurf Referrer First Name	grsf_referrer_first_name	String	The referrer's first name, when applicable	Gavin
GrowSurf Referrer Last Name	grsf_referrer_last_name	String	The referrer's last name, when applicable	Belson
GrowSurf Referrer Email	grsf_referrer_email	String	The referrer's email, when applicable	[e-mail]
GrowSurf Total Referral Count	grsf_total_referral_count	Number	The participant's all-time referral count	12
GrowSurf Monthly Referral Count	grsf_monthly_referral_count	Number	The participant's referral count for the current month	3
GrowSurf Previous Monthly Referral Count	grsf_prev_monthly_referral_count	Number	The participant's referral count for the previous month	8
GrowSurf Next Milestone	grsf_next_milestone	String	The next milestone message, when the Program uses milestone rewards	2 referrals until your next reward
GrowSurf Next Monthly Milestone	grsf_next_monthly_milestone	String	The next monthly milestone message, when applicable	1 referral until this month's reward
GrowSurf Total Invite Count	grsf_total_invite_count	Number	The participant's all-time invite count	24
GrowSurf Total Impression Count	grsf_total_impression_count	Number	The participant's all-time referral-link view count	150

The referral status can be CREDIT_PENDING, CREDIT_AWARDED, or CREDIT_EXPIRED.

View the Resend tutorials for copy-and-paste examples. View Resend's Contact Properties guide to see how properties work in Broadcasts.

Troubleshooting

• If GrowSurf cannot connect, confirm the API key has Full access. Sending-only keys cannot read Segments or manage Contacts.

• If the selected Segment was deleted, choose an existing Segment in GrowSurf and save again.

• Check the GrowSurf participant's activity logs when a participant does not sync. GrowSurf retries temporary provider errors for up to seven days.