diff --git a/opt/00-infrastructure/atlassian/scripts/11-n8n-jira-integration-guide.md b/opt/00-infrastructure/atlassian/scripts/11-n8n-jira-integration-guide.md
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+# n8n ↔ Jira Integration Guide
+
+**Objective:** Create n8n workflows to integrate Jira with Slack, Email, and BigBlueButton
+
+---
+
+## Setup Overview
+
+### Architecture
+```
+Jira Issue Event
+    ↓ (Webhook)
+n8n Webhook Receiver
+    ↓ (Process & Route)
+├─→ Slack Channel (Notification)
+├─→ Email Handler (Create issue)
+└─→ BigBlueButton (Generate meeting link)
+```
+
+### Prerequisites
+1. n8n instance running: `https://n8n.ai-impress.com`
+2. Jira API token configured
+3. Slack workspace with bot permissions
+4. Access to n8n (via Authentik SSO)
+
+---
+
+## Step 1: Create n8n Webhook for Jira Events
+
+### In n8n UI:
+1. Go to `https://n8n.ai-impress.com`
+2. Create new workflow: **Jira Event Handler**
+3. Add "Webhook" node:
+   - Method: POST
+   - Path: `/jira/events`
+   - Copy the **Webhook URL**
+   - Example: `https://n8n.ai-impress.com/webhook/jira/events`
+
+4. Save the node
+
+---
+
+## Step 2: Register Webhook in Jira
+
+### Option A: Via Bash Script
+```bash
+#!/bin/bash
+JIRA_AUTH="di5zYW1vaWxlbmtvQGFpLWltcHJlc3MuY29tOkFUQVRUM3hGZkdGMEFCbEppNE1PUkoxTWx5YjZaaFItSTk4NFRZQ3JVaG9HSDN5SGYwYmpoWktrSl9wazI3czZtcmItR1ZvVnRyMGJYbVhXdFlEeVF0MUFFMMFV0NkJOcG1mcnoxQVRKbklicUFzV1Z1V2VLSHhxeUtKOGdaVkFwc2k4T0JjLWpDMkJWb0c5VFVFQkRQRE1XbUdfMEpHM3pGVTZidjhqVG1HZWN3ZTJ4bFp6VGlKbz1FMDA5MzE0MA=="
+
+curl -X POST \
+  "https://ai-impress.atlassian.net/rest/api/3/webhook" \
+  -H "Authorization: Basic $JIRA_AUTH" \
+  -H "Content-Type: application/json" \
+  -d '{
+    "url": "https://n8n.ai-impress.com/webhook/jira/events",
+    "webhooks": [
+      {
+        "events": ["jira:issue_created", "jira:issue_updated"],
+        "jqlFilter": "project in (PROD, MARK, SUPP, OPS)"
+      }
+    ]
+  }'
+```
+
+### Option B: Manual via Jira UI
+1. Go to https://ai-impress.atlassian.net → Settings → System → Webhooks
+2. Create Webhook:
+   - URL: `https://n8n.ai-impress.com/webhook/jira/events`
+   - Events: Issue created, Issue updated
+   - JQL Filter: `project in (PROD, MARK, SUPP, OPS)`
+
+---
+
+## Step 3: Create Slack Integration Workflow
+
+### In n8n:
+1. Add nodes after Webhook:
+
+**Node 2: Switch**
+- Route based on `body.webhookEvent`:
+  - `jira:issue_created` → Channel 1
+  - `jira:issue_updated` → Channel 2
+
+**Node 3a: Set Slack Message (Created)**
+```javascript
+{
+  "text": `🆕 New Issue: ${body.issue.key}`,
+  "blocks": [
+    {
+      "type": "section",
+      "text": {
+        "type": "mrkdwn",
+        "text": `*${body.issue.fields.summary}*\nProject: ${body.issue.fields.project.name}\nAssignee: ${body.issue.fields.assignee?.displayName || 'Unassigned'}`
+      }
+    }
+  ]
+}
+```
+
+**Node 3b: Set Slack Message (Updated)**
+```javascript
+{
+  "text": `📝 Updated: ${body.issue.key}`,
+  "blocks": [
+    {
+      "type": "section",
+      "text": {
+        "type": "mrkdwn",
+        "text": `*${body.issue.fields.summary}*\nStatus: ${body.issue.fields.status.name}\nAssignee: ${body.issue.fields.assignee?.displayName || 'Unassigned'}`
+      }
+    }
+  ]
+}
+```
+
+**Node 4: Slack Send Message**
+- Bot Token: `xoxb-...` (from Slack workspace)
+- Channel: Select based on project
+  - PROD → `#prod-jira`
+  - MARK → `#mark-jira`
+  - SUPP → `#supp-jira`
+  - OPS → `#ops-jira`
+- Message: Use data from Set message nodes
+
+---
+
+## Step 4: Create Email Integration Workflow
+
+### For incoming emails → Create Jira issue:
+
+**Node 1: Email Trigger** (if using IMAP)
+- Mailbox: `support@ai-impress.com`
+- Check for new emails every 1 minute
+
+**Node 2: Extract Email Data**
+```javascript
+{
+  "summary": `[Email] ${email.subject}`,
+  "description": email.body,
+  "issueType": "Task",
+  "project": "SUPP"
+}
+```
+
+**Node 3: Create Jira Issue**
+- Use Jira node with "Create" action
+- Map extracted data to issue fields
+
+---
+
+## Step 5: Create BigBlueButton Integration
+
+### For meeting link generation:
+
+**Node 1: BigBlueButton Create Meeting**
+- Meeting ID: `${issue.key}-${timestamp}`
+- Meeting Name: `${issue.key}: ${issue.summary}`
+- Attendee Password: `attendee123`
+- Moderator Password: `moderator123`
+
+**Node 2: Store URL in Jira**
+- Update issue custom field with meeting URL
+- Use Jira "Update" node
+
+**Node 3: Notify via Slack**
+- Send message with meeting link to appropriate channel
+
+---
+
+## Testing the Workflow
+
+### Test Jira Webhook:
+```bash
+# Create a test issue in PROD
+curl -X POST \
+  "https://ai-impress.atlassian.net/rest/api/3/issues" \
+  -H "Authorization: Basic $JIRA_AUTH" \
+  -H "Content-Type: application/json" \
+  -d '{
+    "fields": {
+      "project": {"key": "PROD"},
+      "summary": "Test n8n integration",
+      "issuetype": {"name": "Task"}
+    }
+  }'
+```
+
+### Verify in n8n:
+1. Go to workflow
+2. Click "Execute Workflow"
+3. Check execution logs
+4. Verify Slack message appears
+
+---
+
+## Error Handling
+
+Add error handlers in n8n for:
+1. Webhook validation failures
+2. Jira API rate limits
+3. Slack message delivery failures
+4. Email parsing errors
+
+Use n8n "Error Handler" nodes to log and retry.
+
+---
+
+## Monitoring & Maintenance
+
+### Check webhook status:
+```bash
+curl -X GET \
+  "https://ai-impress.atlassian.net/rest/api/3/webhook" \
+  -H "Authorization: Basic $JIRA_AUTH"
+```
+
+### Check failed webhooks:
+```bash
+curl -X GET \
+  "https://ai-impress.atlassian.net/rest/api/3/webhook/failed" \
+  -H "Authorization: Basic $JIRA_AUTH"
+```
+
+### Extend webhook life (30 days expiry):
+```bash
+curl -X POST \
+  "https://ai-impress.atlassian.net/rest/api/3/webhook/refresh" \
+  -H "Authorization: Basic $JIRA_AUTH" \
+  -d '{
+    "webhookIds": [10000, 10001, 10002]
+  }'
+```
+
+---
+
+## Troubleshooting
+
+| Issue | Solution |
+|-------|----------|
+| Webhook not firing | Check JQL filter in Jira webhook settings |
+| Message not in Slack | Verify bot token and channel name |
+| Rate limit errors | Add delays between n8n operations |
+| Meeting link not stored | Check custom field ID in Jira |
+
+---
+
+## Success Criteria
+
+✅ Issue created in Jira → Appears in Slack within 5 seconds
+✅ Email received → Creates SUPP ticket automatically
+✅ BBB meeting link generated and stored in issue
+✅ No API rate limit errors
+✅ All workflows handle errors gracefully
+
+---
+
+## Resources
+
+- n8n Docs: https://docs.n8n.io
+- Jira Webhook API: https://developer.atlassian.com/cloud/jira/platform/webhooks/
+- Slack Bot API: https://api.slack.com/bot-users
+
+---
+
+**Next:** Execute this guide to create working integrations
+
diff --git a/opt/00-infrastructure/atlassian/scripts/11-register-n8n-webhook.sh b/opt/00-infrastructure/atlassian/scripts/11-register-n8n-webhook.sh
new file mode 100755
index 0000000..32c2a0f
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+++ b/opt/00-infrastructure/atlassian/scripts/11-register-n8n-webhook.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+
+# Week 4: Register n8n Webhook in Jira
+# Creates webhook to send Jira events to n8n for processing
+
+ATLASSIAN_SITE_URL="https://ai-impress.atlassian.net"
+ATLASSIAN_EMAIL="v.samoilenko@ai-impress.com"
+ATLASSIAN_API_TOKEN="ATATT3xFfGF0ABlJi4MORJ1Mlyb6ZhR-I984TYCrUhoGH3yHf0bjhZKkJ_pk27s6mrb-GVoVtr0bXmXWtYDyQt0QL0Ut6BNpmfrz1ATJnIbqAsWVuWeKHxqyKJ8gZVApsi8OBc-jC2BVoG9TUEBDPDMWmG_0JG3zFU6bv8jTmGecwe2xlZzTiJo=E0093140"
+JIRA_AUTH=$(echo -n "${ATLASSIAN_EMAIL}:${ATLASSIAN_API_TOKEN}" | base64)
+
+# n8n webhook URL
+N8N_WEBHOOK_URL="https://n8n.ai-impress.com/webhook/jira/events"
+
+echo "=== Week 4: Registering n8n Webhook in Jira ==="
+echo ""
+echo "Webhook URL: $N8N_WEBHOOK_URL"
+echo ""
+
+# Create webhook payload
+echo "Creating webhook for Jira events..."
+
+JSON_DATA='{
+  "url": "'$N8N_WEBHOOK_URL'",
+  "webhooks": [
+    {
+      "events": [
+        "jira:issue_created",
+        "jira:issue_updated"
+      ],
+      "jqlFilter": "project in (PROD, MARK, SUPP, OPS)"
+    }
+  ]
+}'
+
+echo "Webhook configuration:"
+echo "$JSON_DATA" | python3 -m json.tool
+echo ""
+
+# Register webhook
+echo "Registering webhook in Jira..."
+RESPONSE=$(curl -s -X POST \
+  "${ATLASSIAN_SITE_URL}/rest/api/3/webhook" \
+  -H "Authorization: Basic ${JIRA_AUTH}" \
+  -H "Content-Type: application/json" \
+  -d "$JSON_DATA")
+
+echo "Response:"
+echo "$RESPONSE" | python3 -m json.tool
+
+# Check if successful
+if echo "$RESPONSE" | grep -q '"webhookIds"'; then
+    WEBHOOK_IDS=$(echo "$RESPONSE" | python3 -c "import sys, json; data=json.load(sys.stdin); print([w['id'] for w in data['webhookIds']])")
+    echo ""
+    echo "✓ Webhook registered successfully!"
+    echo "Webhook IDs: $WEBHOOK_IDS"
+    echo ""
+    echo "Next steps:"
+    echo "1. Test by creating an issue in Jira:"
+    echo "   - Project: PROD"
+    echo "   - Watch for webhook event in n8n"
+    echo ""
+    echo "2. Monitor webhook status:"
+    echo "   - Check n8n webhook logs: $N8N_WEBHOOK_URL"
+    echo ""
+    echo "3. View failed webhooks (if any):"
+    echo "   - Endpoint: /rest/api/3/webhook/failed"
+else
+    ERROR=$(echo "$RESPONSE" | python3 -c "import sys, json; data=json.load(sys.stdin); print(data.get('errorMessages', [data]))" 2>/dev/null)
+    echo ""
+    echo "❌ Error: $ERROR"
+    echo ""
+    echo "Troubleshooting:"
+    echo "1. Check n8n webhook URL is accessible: $N8N_WEBHOOK_URL"
+    echo "2. Verify Jira authentication token is valid"
+    echo "3. Check JQL filter syntax: project in (PROD, MARK, SUPP, OPS)"
+fi
+
+echo ""
+echo "=== Webhook Registration Complete ==="