Scheduling

Schedule Substack notes with Eden

Set up Substack scheduling and learn how Eden hands your notes to Substack's own scheduler so they publish even when your devices are off.

·4 min read

Substack has no public posting API, so Eden schedules your notes differently from every other network — and as of this update, more reliably than ever: for most notes, Eden hands the schedule to Substack's own scheduler ahead of time, so the note publishes at its slot even if every one of your devices is off. Here's how it works and how to set it up.

How Substack scheduling works

Every other network in Eden (X, LinkedIn, Threads, Instagram, TikTok, Facebook) publishes from Eden's servers. Substack blocks automated posting from servers, so Eden works through your own signed-in devices — the Chrome extension, the Eden desktop app, or the Eden iPhone app — in two ways:

  • Text notes (most notes): scheduled natively on Substack. In the day before a note's slot, the first of your devices that comes online quietly hands it to Substack's built-in Notes scheduler. Usually that happens seconds after you hit Schedule. From that moment the note shows an "On Substack ✓" badge in your queue and will publish at its exact time — laptop closed, phone off, doesn't matter. You can still edit, reschedule, or cancel it in Eden; changes sync to Substack the next time one of your devices is online.
  • Threads and image notes: published live at the slot. Substack's scheduler can't chain a reply thread or (yet) carry Eden-attached images, so these still post from your browser at the scheduled time — Chrome (with the Eden extension) or the desktop app needs to be running within about ten minutes of the slot. If nothing was online, Eden flags the note honestly instead of posting it stale hours later.

Set it up

  1. 01

    Install and connect the Eden Chrome extension

    Add Eden from the Chrome Web Store, pin it next to the address bar, click the icon, and choose "Connect Eden" to link your account.

  2. 02

    Sign in to Substack in that same Chrome

    Open substack.com and make sure you're logged in. Eden acts as your signed-in browser session — if you're not signed in, nothing can be scheduled or posted.

  3. 03

    Connect Substack in Eden — one click

    In Eden, go to Settings → Scheduling → Connected accounts and click Connect Substack. With the extension installed and Substack signed in, that's it — the extension links your account and fills in your handle automatically.

  4. 04

    Optional: connect Substack on your iPhone too

    In the Eden iOS app, open schedule settings and tap Substack on this phone → Connect, then sign in (use your password — email magic links open outside the app). Now notes you schedule from your phone are handed to Substack seconds later, no computer involved.

  5. 05

    Schedule your first note

    Write a note, choose Substack, pick a time, and save. Watch for the On Substack ✓ badge in the queue — that's your confirmation it will publish no matter what.

What to expect

  • Text notes publish at their slot, devices off. Once you see "On Substack ✓", it's locked in on Substack's side. You can verify any time in Substack's own Drafts list.
  • Edits are honest about timing. Changing a handed-off note works from Eden, and syncs the next time a device of yours is online. If nothing comes online before the slot, the original version posts — the queue shows this state.
  • Threads and image notes need a live browser at the slot. Same rules as before: Chrome (or the desktop app) running on an awake machine within the ten-minute window. Missed ones are flagged as drafts with a warning, never posted stale.
  • Scheduling from anywhere is instant. Whether you schedule on web, from your phone, or through the Eden connector in Claude, your devices are woken immediately to do the handoff.
  • Your other networks are unaffected. They still publish from Eden's servers whether or not your computer is on.

Publish full Substack articles from the desktop app

The lanes above handle Substack notes. For long-form Substack articles, use the Eden desktop app — it schedules full articles through Substack's native post scheduler the same way: handed off ahead of time, published by Substack's servers with your machine off.

  1. 01

    Open the Eden desktop app

    Long-form Substack publishing lives in the desktop app. Install it and sign in to Eden if you haven't already.

  2. 02

    Connect Substack with the native sign-in

    The desktop app uses your existing Substack session through a secure native sign-in to link your account. No developer tools, no manual paste.

  3. 03

    Compose and publish your article from the Schedule pane

    Write your full article in the Schedule pane, then publish it — or schedule it — directly to Substack from Eden.

Related articles

Connect your social accounts

Link X, LinkedIn, Threads, Instagram, TikTok, Facebook, and YouTube in one step, connect Substack separately, and understand the requirements for each platform.

Schedule and publish posts

Write a post, pick your platforms, schedule it or publish now, and manage your queue, drafts, and any posts that need attention.

Scheduling troubleshooting

Fix the common scheduling snags — Instagram connection errors, the wrong account connecting, posts that fail or land late, and Substack publishing quirks.

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