Kaldr Tech + Mailchimp
Sync your customer list to Mailchimp for campaigns that pay
What It Does
The Kaldr Tech Mailchimp integration keeps your customer list in Mailchimp in lockstep with Kaldr. New customers created in Kaldr are added to the audience of your choice, complete with tags for service type, last job date, ticket size, and geography. When a customer books another job, pays an invoice, or leaves a review, those events can trigger Mailchimp automations like a thank-you note, a maintenance reminder, or a seasonal tune-up offer. The sync is one-way from Kaldr to Mailchimp for customer data and two-way for unsubscribes, so customers who opt out in Mailchimp are immediately marked as do-not-email in Kaldr and respected across every other channel.
Why It Matters
The cheapest lead a trades shop can generate is a repeat customer, and the cheapest way to reach them is email. The industry average open rate for trades email is about 28 percent, and a single well-timed seasonal email campaign to 2,000 past customers typically books 15 to 30 jobs at an average ticket of $600 to $1,200. That is $9,000 to $36,000 in booked revenue from one email send. Shops that run quarterly maintenance reminder campaigns through Mailchimp see customer lifetime value climb by 25 to 40 percent because customers come back for regular service instead of only calling when something breaks. The problem for most shops is getting clean customer data into Mailchimp in the first place. Manual CSV exports are tedious and always out of date, so the list goes stale and the campaigns stop working. With the Kaldr integration, the list is always current, the tags are rich enough to segment properly, and the campaigns actually reach the right people. And because the integration marketplace is free to connect, the only cost is your Mailchimp plan itself.
How to Set It Up
- 1
Connect your Mailchimp account
From Settings, Integrations, Mailchimp, click Connect. Sign in to Mailchimp and approve the permissions. Kaldr only asks for audience read and write, nothing more. The OAuth flow takes under a minute.
- 2
Pick the target audience
Choose which Mailchimp audience should receive synced customers. Most shops use one main audience for all customers and rely on tags and segments to slice it, which is more scalable than creating a dozen separate audiences.
- 3
Configure tag mapping
Decide which Kaldr data points should become Mailchimp tags: service type, last job date, ticket size bracket, city, and tech assigned. Rich tagging is what makes segmentation work later, so spend a few minutes here instead of rushing.
- 4
Run the initial backfill
Kaldr will push your existing customer list to Mailchimp in one go. For a list of 5,000 customers this typically takes 2 to 5 minutes. You can watch progress from the integration dashboard.
- 5
Respect unsubscribes and launch a test campaign
Confirm that unsubscribe sync is turned on so Mailchimp opt-outs flow back to Kaldr. Then send a small test campaign to a segment of 20 to 50 customers to verify formatting and deliverability before running a full send.
What You Can Do With It
- ✓An HVAC shop sends a spring tune-up email to 1,800 customers tagged with AC service in the last 2 years and books 22 tune-ups worth $6,600 in the first week.
- ✓A plumbing business runs a winter pipe protection campaign segmented by city and drives 14 emergency prevention visits in December.
- ✓An electrician tags customers with panel upgrades over $3,000 and sends a targeted smart home upsell that converts at 8 percent.
- ✓A new customer booked yesterday lands in Mailchimp this morning, enters a welcome drip, and gets a thank-you email with the owner's photo signed by name.
- ✓A customer who unsubscribes in Mailchimp is automatically marked do-not-email in Kaldr so the office manager does not accidentally send them a review request the next day.
Frequently Asked Questions
Is the Mailchimp integration free to connect?
Yes. Every integration in the Kaldr marketplace is free to connect. You only pay Mailchimp for your own plan, which is free for small lists and scales by audience size from there.
Does the sync respect unsubscribes?
Yes. Unsubscribes in Mailchimp flow back to Kaldr in near real time and mark the customer as do-not-email, which then blocks email across every other Kaldr channel too.
How often does the customer list sync?
New customers sync within minutes of being created in Kaldr. Updates to existing customers sync on a rolling basis, typically within 5 to 15 minutes depending on volume.
Can I segment by service type or ticket size?
Yes. Kaldr pushes rich tags to Mailchimp including service type, ticket size bracket, last job date, and city. You can build as many segments as you want inside Mailchimp using those tags.
What about SMS campaigns?
Mailchimp is email-focused. For SMS marketing, Kaldr's built-in messaging or the Twilio integration are better fits. You can run email through Mailchimp and SMS through Kaldr without conflict.
Free integration. Free software.
Every Kaldr Tech integration is free on every plan. $0/month, 3.5% + 30¢ per transaction. Unlimited users.