Outgoing webhooks (Zapier, Make and others)
Every completed donation can POST a tidy JSON payload to any URL you choose. Point it at a Zapier or Make catch-hook and you've connected Donor Merchant to thousands of apps - Google Sheets, Slack, Airtable, your CRM, QuickBooks - without a dedicated add-on for each.
The payload includes the donation (amount, frequency, campaign, designation, employer match, custom fields), the donor, and your organization. Each request is signed with an X-Donor-Merchant-Signature HMAC header so your endpoint can verify it.
Mailchimp audience sync
Turn donors into subscribers. Connect your Mailchimp API key and audience, and donors are added with their name merged in - with a polite opt-in checkbox on the form (recommended), or automatically if you prefer. Double opt-in is supported, and existing subscribers are never downgraded.
It's the single most-requested integration for nonprofits, included free - where others gate it behind premium add-ons.
For developers
Beyond webhooks, the plugin fires a donor_merchant_donation_completed action and ships filters for receipts and fees - so you can extend behavior in code when you need to. Your data, your rules.