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+# FARTCOIN Symbol Normalization Fix (Dec 7, 2025)
+
+## Problem Summary
+
+User added FARTCOIN 1-minute and 5-minute TradingView alerts for multi-asset data collection, but all FARTCOIN signals were being stored in the database as `SOL-PERP` instead of `FARTCOIN-PERP`.
+
+## Root Cause Discovery
+
+**Initial Hypothesis (WRONG):**
+- Suspected bot's symbol normalization code was checking `includes('SOL')` before FARTCOIN
+- Applied fixes to `config/trading.ts` and `app/api/trading/market-data/route.ts`
+- **Result:** Fixes had NO effect, logs still showed SOL-PERP
+
+**Actual Root Cause (Dec 7, 2025):**
+- **TradingView → n8n → Bot architecture misunderstanding**
+- n8n workflow normalizes symbols BEFORE sending to bot
+- Bot receives symbols already in Drift format (`SOL-PERP`, `BTC-PERP`)
+- Bot's normalization code is NEVER reached
+- n8n workflow regex only matched `(SOL|BTC|ETH)` - FARTCOIN was missing
+
+## Evidence
+
+**Docker logs analysis:**
+```bash
+docker logs trading-bot-v4 --since 20m | grep "🎯 Trade execution request"
+```
+
+**Result:**
+```json
+{
+  "symbol": "SOL-PERP",  // Already normalized by n8n!
+  "direction": "long",
+  "timeframe": "1",
+  "atr": 0,
+  "adx": 26.9563054335
+}
+```
+
+**Key insight:** Symbol field was `SOL-PERP`, not `SOLUSDT` or `SOL` - normalization happened BEFORE bot received webhook.
+
+## Solution
+
+**File:** `workflows/trading/parse_signal_enhanced.json`
+
+**Changes:**
+1. Updated symbol regex: `(SOL|BTC|ETH)` → `(FARTCOIN|FART|SOL|BTC|ETH)`
+2. Added FARTCOIN-specific mapping logic:
+
+```javascript
+const symbolMatch = body.match(/\b(FARTCOIN|FART|SOL|BTC|ETH)\b/i);
+let symbol;
+if (symbolMatch) {
+  const matched = symbolMatch[1].toUpperCase();
+  // FARTCOIN and FART both map to FARTCOIN-PERP
+  if (matched === 'FARTCOIN' || matched === 'FART') {
+    symbol = 'FARTCOIN-PERP';
+  } else {
+    symbol = matched + '-PERP';
+  }
+} else {
+  symbol = 'SOL-PERP'; // Default fallback
+}
+```
+
+**Why order matters:** FARTCOIN checked BEFORE SOL to avoid substring match issues.
+
+## Deployment Steps
+
+### 1. Code Changes (✅ Complete)
+- Updated `workflows/trading/parse_signal_enhanced.json`
+- Committed and pushed (commit d3e0d20 + ebffe9a)
+
+### 2. n8n Workflow Import (⏳ USER ACTION REQUIRED)
+**CRITICAL:** User must manually import updated workflow to n8n:
+
+1. Open n8n web interface
+2. Navigate to workflows
+3. Find "Parse Signal Enhanced" workflow
+4. Import from: `/home/icke/traderv4/workflows/trading/parse_signal_enhanced.json`
+5. Activate the updated workflow
+
+**Without this step, FARTCOIN symbols will STILL be saved as SOL-PERP**
+
+### 3. Verify Fix Working
+After importing workflow, trigger new FARTCOIN alert and check logs:
+
+```bash
+docker logs trading-bot-v4 --since 5m | grep -i fart
+```
+
+**Expected output:**
+```
+📊 Normalized symbol: FARTCOIN-PERP → FARTCOIN-PERP
+📊 DATA COLLECTION: 1min signal from FARTCOIN-PERP
+```
+
+## Architecture Clarification
+
+**Symbol Normalization Flow:**
+```
+TradingView Alert (FARTCOIN)
+    ↓
+n8n Parse Signal Enhanced
+    ↓ (Regex match + mapping logic)
+n8n HTTP POST to Bot
+    ↓ (Symbol already "FARTCOIN-PERP")
+Bot Execute Endpoint
+    ↓ (normalizeTradingViewSymbol() called but does nothing - already normalized)
+Database Save (FARTCOIN-PERP)
+```
+
+**Key Insight:** n8n is the ONLY place where raw TradingView symbols get normalized. Bot normalization code is a fallback that's rarely (never?) used in production.
+
+## Future Symbol Additions
+
+**To add new symbols (BNB, AVAX, etc.):**
+
+1. **Update n8n workflow** (`parse_signal_enhanced.json`):
+   - Add to regex: `(FARTCOIN|FART|BNB|SOL|BTC|ETH)`
+   - Add mapping if needed (e.g., special cases like FARTCOIN)
+   
+2. **Import to n8n** (manual step, MANDATORY)
+
+3. **Bot normalization code** (optional, for non-n8n webhooks):
+   - Update `config/trading.ts` - `normalizeTradingViewSymbol()`
+   - Update `app/api/trading/market-data/route.ts` - local `normalizeTradingViewSymbol()`
+
+## Lessons Learned
+
+### 1. Verify Data Flow Before Debugging
+- Spent time fixing bot code that was never executed
+- Should have checked webhook payload FIRST to see pre-normalized symbol
+- "Obvious" solution (bot regex order) was wrong because assumption was wrong
+
+### 2. Architecture Documentation Critical
+- n8n symbol normalization was not documented anywhere
+- Led to incorrect debugging approach
+- Now documented in `.github/copilot-instructions.md` for future reference
+
+### 3. Test with Real Data
+- Code changes looked correct but logs showed no effect
+- Real production logs revealed actual data flow
+- Never declare "fixed" without verification
+
+### 4. Manual Deployment Steps Must Be Explicit
+- n8n workflow changes require manual import
+- Git commit alone is NOT sufficient
+- User must perform import step for fix to take effect
+
+## Git Commits
+
+- **d3e0d20** - "fix: Add FARTCOIN symbol mapping to n8n Parse Signal Enhanced"
+- **ebffe9a** - "docs: Document n8n symbol normalization architecture and FARTCOIN fix"
+
+## Status
+
+- ✅ Code fixed and committed
+- ✅ Documentation updated
+- ⏳ **USER ACTION REQUIRED:** Import workflow to n8n
+- ⏳ Waiting for verification (next FARTCOIN alert)
+
+## Related Issues
+
+- **Smart Validation Timeout Extension:** Also completed Dec 7, 2025 (separate feature)
+- **Multi-Asset Data Collection:** FARTCOIN is part of broader multi-asset analysis initiative
+- **BlockedSignal Analysis:** Quality-blocked signals tracked for threshold optimization
+
+---
+
+**Dec 7, 2025 20:50 CET** - Investigation complete, fix applied, awaiting n8n import by user.