MarketingCustom integration

Holded MailerLite integration

MailerLite + Holded: simple, effective email marketing for small businesses and solopreneurs.

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Holded

↔

MailerLite

Implementation time · 3-7 días laborables

Diagnosis

The problem

Solopreneurs and small businesses using MailerLite have their list growing through their website or landing pages, but the commercial data (LTV, frequency, customer status) sits in Holded and is not connected. The result: a one-size-fits-all newsletter, no value-based segmentation, and the risk of sending promos to customers who already pay a subscription or have asked to cancel.

Proposal

The solution

MailerLite is the simple, affordable alternative to Mailchimp and Klaviyo, especially popular with solopreneurs, creators and small businesses that need a newsletter plus basic automations without the overhead. Integrating it with Holded keeps the list updated with real customer data and no manual work.

Scope

What we automate

New Holded customer to a MailerLite subscriber in the right list with tags and fields
Paid invoice to an 'active customer' tag added to the subscriber
Overdue invoice or cancellation to an 'inactive' tag that pauses campaigns
Dynamic segments based on LTV, frequency or customer category
MailerLite newsletter sign-up to a pre-qualified contact in Holded for sales
Unsubscribes in MailerLite respected in Holded (no marketing email sent)

Architecture

How we build it

MailerLite REST API (Bearer token). Holded API v2. Custom fields in MailerLite for commercial data. Incremental sync by timestamp to respect quotas. Unsubscribes always respected in both directions (GDPR compliance).

flow.ts

webhook mailerlite.event

→ queue.enqueue(jobId)

→ worker.handle() // idempotent

→ holded.api.call() // retries with backoff

→ log.emit({ status: 'ok' })

FAQ

Frequently asked questions

Is it a fit for an ecommerce store?

If your store is small or medium and MailerLite is enough for a newsletter plus a few simple automations, yes. For DTC stores with more than 5,000 active contacts and a need for complex purchase-driven flows, Klaviyo scales better.

Does the MailerLite Free plan work?

Yes, the API is available on Free. The limit is 1,000 contacts and 12,000 emails per month. To grow, the Growing Business plan.

What about embedded MailerLite forms?

Yes. Each MailerLite form submission creates a contact in Holded with its source identified. Useful for segmenting leads by capture landing page.

Migrate from Mailchimp to MailerLite?

If you want to cut cost and simplify, yes, they are comparable on basic features. If you need Mailchimp's advanced features (multivariate testing, predictive segmentation), it is not worth it. We discuss it during discovery.

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