Scheduling Posts to Multiple Channels
Learn how to schedule the same post to multiple social media channels simultaneously in Publlish — and how to customise the caption and media for each platform while scheduling in one action.
One of the biggest time-savers in Publlish is the ability to schedule content to multiple social channels in a single action. Instead of creating separate posts for each platform, you compose once, customise per platform if needed, and publish to all channels simultaneously.
How to Select Multiple Channels
- Click New Post in your Publlish dashboard
- In the channel selector at the top of the composer, click on each channel you want to include
- Selected channels will be highlighted or checked
- You'll see a tab for each selected channel in the composer — this is where you customise per platform
You can select as many channels as you want — all of your connected TikTok, Facebook, Instagram, YouTube, X, and LinkedIn accounts are available.
Same Caption vs. Customised Per Channel
After selecting your channels, you have two approaches:
Same caption for all channels: Write your caption once and it applies to every selected channel. Fastest option, best for content that doesn't need adapting (e.g. a simple announcement with an image).
Customised caption per channel: Click each channel's tab in the composer and write a platform-specific version. The media stays the same; only the caption changes. This is recommended for most content — what works on TikTok (casual, hook-first, trending hashtags) is very different from what works on LinkedIn (professional, longer, no trending hashtags).
Publlish automatically warns you if a caption exceeds a platform's character limit, so you can fix it before scheduling.
What Gets Customised vs. What Stays the Same
| Element | Same across all channels | Customisable per channel |
|---|---|---|
| Media (image/video) | ✅ Same file | ❌ Can't use different files per channel |
| Caption text | Optional — can be same or different | ✅ Per-channel tabs |
| Hashtags | Optional | ✅ Per-channel tabs |
| Scheduled time | ✅ Same time for all | ❌ To post at different times, schedule separately |
| Tags | ✅ Same tags | ❌ Not per-channel |
To post to channels at different times: Create separate posts for each channel, or schedule the first batch and then duplicate the post and change the time for the other channels. Duplicating posts guide →
Best Combinations for Multi-Channel Posting
Not every channel combination makes sense for every piece of content. Here are the most natural pairings:
Short-form video: TikTok + Instagram Reels + YouTube Shorts — same 9:16 video, three platforms, maximum reach. Full cross-posting guide →
Thought leadership / professional content: LinkedIn + X — customise the LinkedIn version to be longer and more detailed; compress to 280 characters for X. LinkedIn + X cross-posting →
Brand announcements: All channels — major launches, campaigns, and milestones deserve presence everywhere. Customise the format for each platform.
Community/engagement posts: Facebook + Instagram — these platforms share a Meta ecosystem and often have overlapping audiences.
Industry news or articles: LinkedIn + X — both are professional/news-oriented platforms where link sharing performs well.
Checking Multi-Channel Posts in Your Calendar
After scheduling a multi-channel post, it appears in your Calendar as separate entries — one per channel — at the same scheduled time. This lets you see the full picture across all channels without confusion.
Use the All Channels view in your Calendar to see everything at once. All Channels view guide →
Frequently Asked Questions
Can I post to all my channels at the same time with Publlish? Yes — select all your connected channels in the composer and schedule once. Publlish publishes to all simultaneously.
Can I use a different image for each platform when multi-channel posting? Not within a single post — the same media file applies to all selected channels. To use different images per platform, create separate posts for each channel.
Can I post to channels at different times from one compose action? No — the scheduled time applies to all selected channels. To stagger timing, create separate posts per channel or duplicate the post and change the time. Duplicating posts →
Does Publlish automatically adjust captions for each platform's character limit? Publlish warns you if a caption is over the limit for a specific platform — it doesn't auto-truncate. You need to shorten the caption for that channel in the per-channel tab.
What's the maximum number of channels I can post to at once? All of your connected channels — there's no limit on how many you select. The limit is on how many channels you can have connected to your account, which depends on your plan.