Zapier
Create and schedule posts from a Zap with the Zernio app, triggered by Google Sheets, Notion, RSS, Ghost or any of 7,000+ apps.
When you finish this page a Zap creates a post on a connected account through the Zernio action. You need a Zernio account with a connected account and a Zapier account; the app signs in with OAuth, so no API key is pasted.
| Detail | Value |
|---|---|
| Zapier app | Zernio, whose URL still carries late, the product's former name |
| Auth | OAuth (sign in with your Zernio account) |
| Role | Action app: it receives content from a trigger and creates the post |
| Common triggers | Schedule, Notion, Google Sheets, Ghost, RSS, Gmail |
The app has these actions:
| Action | Required fields | Optional fields |
|---|---|---|
| Create Post | Platform, Account ID, Content | Scheduled For, Media URLs |
| Create Instagram Reel | Account ID, Video URL | Content, Thumbnail, Scheduled For |
| Create Instagram Story | Account ID, Image URL | Content, Scheduled For |
| Create YouTube Video | Account ID, Content, Video URL | Thumbnail, Scheduled For |
| Add Pinterest Image Pin | Account ID, Board ID, Link, Content, Image | None |
| Add Pinterest Video Pin | Account ID, Board ID, Content, Link, Cover Image, Video | None |
The two Pinterest actions have no Scheduled For field, so a pin publishes as soon as the Zap runs. To schedule one, put the delay on the Zap, or create the pin with POST /v1/posts and scheduledFor (Pinterest).
| Action | Description |
|---|---|
| Update Post | Edit a draft or scheduled post |
| Delete Post | Delete a draft, scheduled or failed post |
| Retry Add Post | Retry a failed post |
| Get Post by ID | Get one post |
| Get Posts | List posts, filtered by status, profile and date, with pagination |
| Get Profiles | List profiles |
| Get Social Accounts | List the connected accounts of a profile |
| Get Pinterest Board List | List boards for a Pinterest account |
| Delete Social Account | Disconnect an account |
Step 1: Connect the app
Find the app
Create a Zap on zapier.com. When adding an action step, search for Zernio.
Pick Zernio (zernio.com), not "Later". They are different products, and a Zap built on the wrong one fails at the sign-in step. Zernio's own listing URL still reads zapier.com/apps/late/, a leftover from the old name, so trust the app name and not the slug.
Sign in
Click Sign in. Zapier sends you to Zernio's OAuth page: log in, authorize Zapier, and you land back in Zapier. The connection is reused by every Zap.
Pick a profile and an account
In the action, select a Profile, then a Social Account (the list is filtered to that profile), then fill in the content fields. Click Test step.
Step 2: Create a post
- Add a trigger (see triggers).
- Add Zernio as the action app and choose Create Post.
- Select the Profile and the Social Account.
- Enter the Content, or map it from the trigger step.
- Set Scheduled For to publish later, or leave it empty to publish now.
Map trigger values by clicking into a field: a Google Sheets column, a Notion property or an RSS title into Content; a file URL from Google Drive, Dropbox or Airtable into Media URLs; a date column into Scheduled For.
Step 3: Schedule a post
Scheduled For takes an ISO 8601 timestamp. To compute one, add a Code by Zapier step (JavaScript) before the action and map its scheduledFor output:
const tomorrow = new Date();
tomorrow.setDate(tomorrow.getDate() + 1);
tomorrow.setHours(9, 0, 0, 0);
output = [{ scheduledFor: tomorrow.toISOString() }];Step 4: Cross-post
Add one Create Post action per platform in the same Zap (X, then LinkedIn, then Bluesky), or use Paths by Zapier on a paid plan to send different content down each path: Path A with short content for X (platform value twitter), Path B with long-form content for LinkedIn, and a fallback path for the rest.
Triggers
Zernio is an action-only app, so a trigger from another app starts the Zap:
- Schedule by Zapier: every day at 09:00 for a spreadsheet calendar, every Monday for a weekly roundup, every hour for frequent updates, the first of the month for a recap. Schedule triggers do not count toward task usage.
- Google Sheets: New Spreadsheet Row, mapping the Content, Platform, Image URL and Publish Date columns into Content, Platform, Media URLs and Scheduled For.
- Notion: Updated Database Item, with a Filter by Zapier step that continues only when the status is "Ready".
- RSS by Zapier: New Item in Feed, mapping the title and link into Content.
- Ghost: Published Post, sharing each new article.
A retry loop is a Zap too: Schedule by Zapier every hour, Get Posts filtered by status failed, a Filter that continues only when results exist, then Retry Add Post.
If it fails
"Account not found" means the profile and account in the action no longer match; reselect both from the dropdowns. Other errors the action returns:
| Error | Cause | Fix |
|---|---|---|
| "Content too long" | The text exceeds the platform's character limit | Shorten it, or truncate it in a Code step |
| "Rate limit exceeded" | Too many requests (rate limits) | Space out Zap runs |
| "Cannot delete published post" | The post is already published | Only draft, scheduled and failed posts can be deleted |
Zapier retries some failures on its own. For the rest, open Zap History, find the run, fix the input and click Replay. A Filter by Zapier step before the action (content not empty, platform valid, publish date in the future) prevents most bad calls.
Related
Make
Create and schedule posts from a Make scenario with the Zernio app's modules, cross-post through a Router, and call any endpoint with Make an API Call.
OpenClaw
Install the Zernio skill from ClawHub so OpenClaw can create, schedule and retry posts, connect accounts and read analytics from natural language.