Resources · Zapier integration

Letterhead Zapier integrationAutomate Letterhead with Zapier.

The Letterhead Zapier integration offers 0 triggers, 4 actions and 0 searches: other apps start the Zap, and Letterhead receives contacts, tags and links for your newsletters. It runs on the free plan, and this page shows what each step costs and where it trips.

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Overview

What the Letterhead Zapier integration does for your newsletters

Letterhead is a tool to build, curate and send newsletters. On Zapier it only receives: no Letterhead event can start a Zap, but four actions let other apps add contacts, tag them, untag them and drop links into your curations library. Another app supplies the trigger, Letterhead does the rest.

Signups that land subscribed. Add or Update Contact takes an email from any form or tool, adds the person to your company-wide audience and sets their subscription on the newsletter you pick. If the email is already known, the details are updated instead of duplicated.

Tags that follow what people do. Add Contact to Tag and Remove Contact From Tag move a contact in and out of a tag based on what happens in another app, so your segments stay current without manual edits.

A curation library that fills itself. Add Content to Curations saves a link to your library, ready when you compose the next issue.

What Zapier does not do here. There is no Letterhead trigger, so a new subscriber or a sent issue cannot start anything. There is no search step, and no action to send or schedule a newsletter. Three of the four actions need a company-level key. If you are comparing platforms for this kind of flow, see our Make vs Zapier comparison.

Vocabulary

Zapier vocabulary in one minute

Seven words keep coming back on this page. Plain English, one line each.

Zap
The automation you build: one trigger, then one or more actions that run each time the trigger event shows up.
Trigger
The event that starts the Zap. Letterhead has none, so it always comes from another app, like a form.
Action
What the Zap does once it has started: the step that writes or changes something for you, here in Letterhead.
Task
The unit Zapier bills. One action that completes successfully is one task, and your plan counts those.
Polling trigger
A trigger Zapier checks on a timer, asking the app for new items. Its speed depends on your plan.
Instant trigger
A trigger the app reports itself, the moment the event happens, so the plan interval never applies.
Connection
Your Letterhead account linked to Zapier once, then reused by every Letterhead step of every Zap.
Cost

What a Letterhead Zap really costs

Letterhead is not a premium app, so it works on the free plan. You pay in tasks, and only finished actions count.

  • Premium appNo, works on the free plan
  • Free plan100 tasks a month, two-step Zaps only
  • Letterhead triggersNone, the Zap starts elsewhere
  • Failed actionNot counted

The trigger of the other app costs nothing, however often Zapier checks it. Each Letterhead action that goes through is one task, and a failed one is not counted. The free plan gives you 100 tasks a month and unlimited Zaps, but each Zap stops at two steps: one trigger, one action. Add a filter or a second action, for example a tag after the contact, and the Zap becomes multi-step, which needs a paid plan.

How fast a Letterhead Zap runs depends on the other app's trigger: if it is a polling one, the grid below applies.

Connect

Connect Letterhead to Zapier in three steps

  1. 01

    Open your Apps page

    In your Zapier account, go to Apps and click + Add connection. You need a Letterhead account first, with access to the audience and newsletters the Zap will touch.

  2. 02

    Find Letterhead

    Type Letterhead in the search box of the dialog, pick it from the results, then click Add connection. A new browser tab opens on Letterhead's side for your login.

  3. 03

    Sign in and allow access

    Log in to Letterhead in that tab and grant Zapier access to the account. The connection then shows on your Apps page, ready for every Letterhead step you add.

First Zap

Your first Zap: every form signup subscribed in Letterhead

GoalEach person who fills out your signup form becomes a Letterhead contact, subscribed to the newsletter you choose.

  1. 01

    Create the Zap

    Create a new Zap and pick your form tool with its new-answer event as the trigger. Letterhead has no trigger of its own, so the Zap always starts in another app.

  2. 02

    Test the trigger

    Run the test: Zapier brings back the three most recent answers of the connected form. Pick one with a real email address, so the mapping uses real data.

  3. 03

    Add Add or Update Contact

    Add Letterhead as the action and choose Add or Update Contact. Map the email from the form, then pick the channel and the subscription status you want.

  4. 04

    Tag the new contact

    Add a third card, Add Contact to Tag, with the same email and the tag name. This makes the Zap multi-step, so it needs a paid plan; skip it to stay free.

  5. 05

    Test and publish

    Test each step, check the contact in Letterhead, then click Publish. Form answers sent before that moment are not picked up by the Zap.

Actions

The 4 Letterhead actions

Letterhead gives you 4 actions. For each one: what it does for you, when to reach for it, and what to watch out for.

1

Add Content to Curations

Action

In Zapier“Add a URL to a post, page, or other piece of content on the web to save to your curations library, which will make it easier to compose your newsletter.”

Saves a link to a post, page or any piece of web content in your curations library, so it is waiting for you when you compose the next issue.

When to use it
you bookmark interesting reads in another tool and want them gathered in one place for your newsletter.
Watch out
the only required field is the URL, so make sure the trigger hands over a full link.
2

Add or Update Contact

Action

In Zapier“Add a contact to your company-wide audience, or update an existing one. Identified by email — if the contact already exists, their details are updated. Optionally set the contact's subscription status on one or more channels. Requires a company-level API key.”

Adds someone to your company-wide audience, or refreshes their details if the email is already there, and sets their subscription status on a newsletter.

When to use it
people who sign up through a form outside Letterhead should be subscribed without an import.
Watch out
email, channel and subscription status are all required, and the step needs a company-level key.
3

Add Contact to Tag

Action

In Zapier“Add a Letterhead tag to a contact in your company-wide audience, identified by email. Requires a company-level API key, and a company-wide audience that is switched on for your account.”

Puts a Letterhead tag on a contact you identify by email. Tags are written in lower case with hyphens, but Letterhead matches what you type, so VIP Member finds vip-member.

When to use it
a behavior in another app should place someone in a segment.
Watch out
an unknown email still counts as a success with nothing changed; read the Contacts matched field to tell.
4

Remove Contact From Tag

Action

In Zapier“Remove a Letterhead tag from a contact in your company-wide audience, identified by email. Requires a company-level API key, and a company-wide audience that is switched on for your account.”

Takes a tag off a contact, found by email, so they drop out of that segment. It mirrors the tagging action and uses the same name matching.

When to use it
someone no longer qualifies for a segment and should stop receiving what it targets.
Watch out
it needs a company-level key and the company-wide audience switched on, or it cannot run.
When it breaks

When a Letterhead Zap breaks

Zapier links no help article to Letterhead, so these cases come from the action fields and the rules every Zap follows.

The most confusing failures here are the silent ones, where Zapier reports success. When the cause is not obvious, start from our Zapier troubleshooting guide.

  • A tag step that changed nothing

    If the email is not in your company-wide audience, the tag step still succeeds without touching anyone. The Contacts matched field is the only clue.
  • Missing company-level key

    Add or Update Contact and both tag actions require a company-level key; the tag actions also need the company-wide audience switched on.
  • Older signups never arrive

    A Zap only reacts to what happens after it is published. Contacts collected before that stay out; moving them is a separate job.
  • A bulk import goes quiet

    When the other app's trigger suddenly returns a huge batch, after an import or a migration, Zapier's flood protection can hold it back.
Need help

Need help automating Letterhead with Zapier?

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FAQ

Letterhead Zapier integration: your questions

01Is the Letterhead Zapier integration free?
Yes. Letterhead is not a premium app, so it runs on the free Zapier plan. That plan gives you 100 tasks a month and as many Zaps as you want, with a limit few people mention: each Zap is two steps, one trigger and one action. A form that adds a Letterhead contact fits in that. Add a tag step behind it, or a filter, and the Zap becomes multi-step, which needs a paid plan.
02How many tasks does a Letterhead Zap use?
One task per Letterhead action that succeeds. The trigger, which comes from another app, never costs anything. A Zap that adds a contact from a form uses one task per signup; one that adds the contact and then tags them uses two. An action that fails is not counted against your plan. Note that a tag step on an unknown email counts as a success, so it does use a task.
03Can Letterhead start a Zap in real time?
No, because Letterhead has no trigger on Zapier at all: nothing that happens in Letterhead can start a Zap. Your Zap starts in another app, and its speed depends on that app's trigger. If that trigger is instant, the Letterhead step runs right away; if it is a polling one, Zapier checks on your plan's interval, every 15 minutes on the free plan, down to 1 minute on Team and Enterprise.
04What does it take to connect a Letterhead account?
A Letterhead account with access to the audience and newsletters you want to change. In Zapier you open the Apps page, click + Add connection, search for Letterhead, sign in in the tab that opens and grant access. For Add or Update Contact and the two tag actions, Letterhead also requires a company-level key, and the tag actions need the company-wide audience switched on for your account. Without that key, these steps cannot run.
05Why does the tag step succeed but nothing changes in Letterhead?
Because the email was not found in your company-wide audience. Add Contact to Tag and Remove Contact From Tag both look the person up by email, and when nobody matches, the step still reports success, having changed nothing. The Contacts matched field in the result is how you tell. Run Add or Update Contact first in the same Zap, or check the email spelling coming from your trigger. A test run with a known email settles it.
06What if the Letterhead action you need is not in Zapier?
Then the integration does not cover it today. The 4 actions on this page are everything Zapier shows in the editor: no trigger, no search, and nothing to send or schedule an issue. The usual way forward is to keep that part in Letterhead by hand, or to check whether another automation platform reaches more of the app before you build a flow around the missing step. Better to know that before starting.
07Zapier, Make or n8n for Letterhead?
It depends on your criteria rather than on a winner. Zapier gives you four Letterhead actions that run on the free plan, with no trigger and two-step Zaps unless you pay. Make and n8n differ on how they bill runs, how many steps you get without paying and how much setup they ask of you. Compare those points against the flows you plan to build, starting from which events need to reach Letterhead.