Automate Odoo-triggered Redmine & GitLab account creation with Slack notifications

📌Who is this for?

HR teams, IT Operations, and System Administrators managing employee onboarding at scale. It’s perfect if you use Odoo 18 to trigger account requests and need Redmine + GitLab accounts created instantly and consistently.

📌The Problem

Manual account creation creates bottlenecks:

• IT waits for HR notifications that often get missed or delayed.
• Duplicate accounts pile up when no one checks existing data first.
• Account creation timelines are inconsistent (sometimes correct, sometimes wrong).
• Zero visibility into what succeeded or failed.

📌What It Does

Catches an employee account creation request from Odoo 18 → queries employee data → checks for existing accounts → creates only the accounts that are missing → notifies your team via Slack with the full status. Here's the flow in detail:

1. Webhook trigger from Odoo 18 - automatically fires when your HR team marks an employee as needing Redmine, GitLab, or both.
2. Fetch employee data from Odoo 18 - pulls email and account type requirements.
3. Deduplicate requests - separates "needs both," "GitLab only," and "Redmine only" cases.
4. Check for existing accounts - queries Redmine and GitLab to avoid duplicate creation attempts.
5. Create accounts - uses Redmine and GitLab APIs to spin up accounts (only if they don't exist).
6. Slack notification - sends a summary showing what was created, skipped, or failed- including error details if something went wrong.

📌Quick Setup

• Generate a Webhook URL in n8n and configure Odoo 18 to call it during onboarding.
• Add Redmine admin API key and GitLab admin access token.
• Enable /users.json (Redmine) and /users (GitLab) endpoints.
• Configure Slack webhook for notifications.
• Test with sample data, then activate.

📌Results

• Zero duplicates - the system checks before creating.
• Full visibility - Slack reports every single attempt.
• Instant delivery - new hires get accounts on day one.
• Dramatically reduced IT workload.

📌Take It Further

• Auto-assign projects in Redmine/GitLab post-creation.
• Generate passwords or TOTP setup and email them to new hires.
• Log everything to Google Sheets, Notion, or a database.
• Handle multi-tenant setups if your Odoo manages multiple organizations.
• Add provisioning for Slack, Google Workspace, VPN, or other systems.

📌Need help customizing?

Contact me for consulting and support: Linkedin / Website