Connect Slack Webhook to Devad POST

Connect a Slack incoming webhook so Devad POST can publish deterministic workspace updates.

What this channel does

• Slack Webhook uses a tenant incoming webhook URL, so your workspace controls the credential.
• Only superadmin-enabled and plan-allowed channels appear to tenants in POST.

Before you start

• A Slack app with Incoming Webhooks enabled.
• A channel selected for the webhook.
• A POST plan that includes Slack Webhook.

Connect in Devad POST

• Open `/workspaces/apps/post/channels` and choose Slack Webhook.
• Incoming webhook URL: paste the Slack URL that starts with `https://hooks.slack.com/services/`.
• Name: optional display name for the connected Slack channel.
• Save the connection and confirm the channel appears as connected.

Publish with this channel

• Select the connected Slack channel.
• Write the message and optionally attach an image URL or supported image media.
• Publish through the POST queue.

Common fixes

• `invalid_payload`: remove unsupported blocks or very large text.
• `no_service` or `channel_not_found`: recreate the webhook in Slack.

Security notes

• Never paste tokens, webhooks, passwords, or API keys into tickets, screenshots, public docs, or AI prompts.
• Use a credential dedicated to Devad POST and revoke it if access changes.
• Use HTTPS endpoints only.