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Where: Calendar, left sidebar, Add Channel A channel is one connected social account. Everything else in Postiz, the calendar, the composer, analytics, hangs off channels, so this is the first thing you do.
The Add Channel dialog showing the grid of supported platforms

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The four connection flows

Which one you get depends on the platform, not on a setting. The Add Channel dialog picks automatically.
The common case: X, LinkedIn, Facebook, Instagram, YouTube, TikTok, Reddit, Pinterest, Discord, Slack and most others.You click the platform, get sent to the platform’s own authorisation screen, approve, and land back in Postiz with the channel connected.Some platforms then ask a follow-up question, because one account can contain several destinations. Facebook asks which Page, YouTube which channel, Tumblr which blog, LinkedIn Page which company. Postiz calls this a “continue integration” step and the channel is not usable until you finish it.

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Letting a client connect their own account

You do not have to hold a client’s password. The button next to Add Channel generates an invite link you can send them. They open it, authorise their own account, and the channel lands in your organisation. Invite links only cover platforms that redirect cleanly, so platforms needing an instance URL, custom credentials or the browser extension are excluded from that list. See Client groups and invite links.

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After connecting

The channel appears in the left sidebar with its avatar. Two markers are worth knowing:
  • A red exclamation means the channel needs attention. Usually the token expired and it needs reconnecting, sometimes an unfinished setup step.
  • Faded out at half opacity means the channel is disabled.

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When a connect fails

Every platform should be connectable. If one consistently fails, report it in Discord.
The security token that ties the redirect back to your session was lost, usually to a privacy extension or a second browser tab. Start over in one fresh tab. Full detail in OAuth and channel connect errors.
Check whether the platform requires an extra approval step for API posting. Several platforms only allow posting to accounts explicitly added as testers until the developer app is reviewed.